925387739640 has 768 divisors, whose sum is σ = 3985859404800. Its totient is φ = 180640530432.

The previous prime is 925387739629. The next prime is 925387739651. The reversal of 925387739640 is 46937783529.

925387739640 is a `hidden beast` number, since 9 + 2 + 538 + 7 + 7 + 3 + 96 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (925387739629) and next prime (925387739651).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 32844199 + ... + 32872361.

It is an arithmetic number, because the mean of its divisors is an integer number (5189921100).

Almost surely, 2^925387739640 is an apocalyptic number.

925387739640 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 925387739640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992929702400).

925387739640 is an abundant number, since it is smaller than the sum of its proper divisors (3060471665160).

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

925387739640 is a wasteful number, since it uses less digits than its factorization.

925387739640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28276 (or 28269 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 63.

The spelling of 925387739640 in words is "nine hundred twenty-five billion, three hundred eighty-seven million, seven hundred thirty-nine thousand, six hundred forty".