97388309040 has 160 divisors (see below), whose sum is σ = 329490982656. Its totient is φ = 23599150080.

The previous prime is 97388308993. The next prime is 97388309047. The reversal of 97388309040 is 4090388379.

It is a Cunningham number, because it is equal to 312071²-1.

It is not an unprimeable number, because it can be changed into a prime (97388309047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7483179 + ... + 7496181.

Almost surely, 2^97388309040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97388309040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164745491328).

97388309040 is an abundant number, since it is smaller than the sum of its proper divisors (232102673616).

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

97388309040 is a wasteful number, since it uses less digits than its factorization.

97388309040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15867 (or 15861 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 97388309040 in words is "ninety-seven billion, three hundred eighty-eight million, three hundred nine thousand, forty".