38479051890 has 32 divisors (see below), whose sum is σ = 102610805760. Its totient is φ = 10261080432.

The previous prime is 38479051861. The next prime is 38479051903. The reversal of 38479051890 is 9815097483.

38479051890 is a `hidden beast` number, since 38 + 4 + 7 + 9 + 0 + 518 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 71257234 + ... + 71257773.

It is an arithmetic number, because the mean of its divisors is an integer number (3206587680).

Almost surely, 2^38479051890 is an apocalyptic number.

38479051890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38479051890 is an abundant number, since it is smaller than the sum of its proper divisors (64131753870).

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

38479051890 is a wasteful number, since it uses less digits than its factorization.

38479051890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142515023 (or 142515017 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 38479051890 in words is "thirty-eight billion, four hundred seventy-nine million, fifty-one thousand, eight hundred ninety".