38647887960 has 64 divisors (see below), whose sum is σ = 126484001280. Its totient is φ = 9369184640.

The previous prime is 38647887893. The next prime is 38647887961. The reversal of 38647887960 is 6978874683.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 38647887891 and 38647887900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38647887961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14638032 + ... + 14640671.

It is an arithmetic number, because the mean of its divisors is an integer number (1976312520).

Almost surely, 2^38647887960 is an apocalyptic number.

38647887960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38647887960 is an abundant number, since it is smaller than the sum of its proper divisors (87836113320).

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

38647887960 is a wasteful number, since it uses less digits than its factorization.

38647887960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29278728 (or 29278724 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 66.

The spelling of 38647887960 in words is "thirty-eight billion, six hundred forty-seven million, eight hundred eighty-seven thousand, nine hundred sixty".