18631267485368 has 64 divisors (see below), whose sum is σ = 37017207152640. Its totient is φ = 8760864351744.

The previous prime is 18631267485307. The next prime is 18631267485377. The reversal of 18631267485368 is 86358476213681.

It is a super-2 number, since 2×18631267485368² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 18631267485298 and 18631267485307.

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, 1121884121 + ... + 1121900727.

It is an arithmetic number, because the mean of its divisors is an integer number (578393861760).

Almost surely, 2^{18631267485368} is an apocalyptic number.

It is an amenable number.

18631267485368 is a deficient number, since it is larger than the sum of its proper divisors (18385939667272).

18631267485368 is a wasteful number, since it uses less digits than its factorization.

18631267485368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524 (or 22520 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 68.

The spelling of 18631267485368 in words is "eighteen trillion, six hundred thirty-one billion, two hundred sixty-seven million, four hundred eighty-five thousand, three hundred sixty-eight".