38725646430 has 32 divisors (see below), whose sum is σ = 93238511904. Its totient is φ = 10293843456.

The previous prime is 38725646429. The next prime is 38725646507. The reversal of 38725646430 is 3464652783.

It is a self number, because there is not a number n which added to its sum of digits gives 38725646430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2052679 + ... + 2071458.

It is an arithmetic number, because the mean of its divisors is an integer number (2913703497).

Almost surely, 2^38725646430 is an apocalyptic number.

38725646430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38725646430 is an abundant number, since it is smaller than the sum of its proper divisors (54512865474).

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

38725646430 is a wasteful number, since it uses less digits than its factorization.

38725646430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124460.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 38725646430 in words is "thirty-eight billion, seven hundred twenty-five million, six hundred forty-six thousand, four hundred thirty".