38661353642888 has 32 divisors (see below), whose sum is σ = 77068982260800. Its totient is φ = 18141340671168.

The previous prime is 38661353642851. The next prime is 38661353642903. The reversal of 38661353642888 is 88824635316683.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982217158 + ... + 1982236661.

It is an arithmetic number, because the mean of its divisors is an integer number (2408405695650).

Almost surely, 2^{38661353642888} is an apocalyptic number.

It is an amenable number.

38661353642888 is a deficient number, since it is larger than the sum of its proper divisors (38407628617912).

38661353642888 is a wasteful number, since it uses less digits than its factorization.

38661353642888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964453901 (or 3964453897 counting only the distinct ones).

The product of its digits is 955514880, while the sum is 71.

The spelling of 38661353642888 in words is "thirty-eight trillion, six hundred sixty-one billion, three hundred fifty-three million, six hundred forty-two thousand, eight hundred eighty-eight".