97271280000000 has 1760 divisors, whose sum is σ = 384881392044864. Its totient is φ = 24385536000000.

The previous prime is 97271279999987. The next prime is 97271280000029. The reversal of 97271280000000 is 8217279.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 97271280000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 110159999559 + ... + 110160000441.

Almost surely, 2^{97271280000000} is an apocalyptic number.

97271280000000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97271280000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192440696022432).

97271280000000 is an abundant number, since it is smaller than the sum of its proper divisors (287610112044864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97271280000000 is an frugal number, since it uses more digits than its factorization.

97271280000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 97271280000000 its reverse (8217279), we get a palindrome (97271288217279).

The spelling of 97271280000000 in words is "ninety-seven trillion, two hundred seventy-one billion, two hundred eighty million", and thus it is an aban number.