38898779830722 has 64 divisors (see below), whose sum is σ = 100010188473600. Its totient is φ = 11113937085744.

The previous prime is 38898779830697. The next prime is 38898779830751. The reversal of 38898779830722 is 22703897789883.

38898779830722 is a `hidden beast` number, since 388 + 9 + 87 + 7 + 98 + 3 + 0 + 72 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

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, 635196697 + ... + 635257932.

It is an arithmetic number, because the mean of its divisors is an integer number (1562659194900).

Almost surely, 2^{38898779830722} is an apocalyptic number.

38898779830722 is an abundant number, since it is smaller than the sum of its proper divisors (61111408642878).

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

38898779830722 is an equidigital number, since it uses as much as digits as its factorization.

38898779830722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270454659 (or 1270454641 counting only the distinct ones).

The product of its (nonzero) digits is 4096770048, while the sum is 81.

The spelling of 38898779830722 in words is "thirty-eight trillion, eight hundred ninety-eight billion, seven hundred seventy-nine million, eight hundred thirty thousand, seven hundred twenty-two".