381747425280 has 416 divisors, whose sum is σ = 1360840944960. Its totient is φ = 90722795520.

The previous prime is 381747425219. The next prime is 381747425341. The reversal of 381747425280 is 82524747183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (381747425219) and next prime (381747425341).

It is a tau number, because it is divible by the number of its divisors (416).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23154640 + ... + 23171120.

Almost surely, 2^381747425280 is an apocalyptic number.

381747425280 is a gapful number since it is divisible by the number (30) 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 381747425280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680420472480).

381747425280 is an abundant number, since it is smaller than the sum of its proper divisors (979093519680).

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

381747425280 is a wasteful number, since it uses less digits than its factorization.

381747425280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555 (or 16533 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 381747425280 in words is "three hundred eighty-one billion, seven hundred forty-seven million, four hundred twenty-five thousand, two hundred eighty".