18112154922547 has 32 divisors (see below), whose sum is σ = 22097567232000. Its totient is φ = 14499401565600.

The previous prime is 18112154922487. The next prime is 18112154922571. The reversal of 18112154922547 is 74522945121181.

It is not a de Polignac number, because 18112154922547 - 2³⁹ = 17562399108659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18112154922494 and 18112154922503.

It is not an unprimeable number, because it can be changed into a prime (18112154922577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144405772 + ... + 144531142.

It is an arithmetic number, because the mean of its divisors is an integer number (690548976000).

Almost surely, 2^{18112154922547} is an apocalyptic number.

18112154922547 is a deficient number, since it is larger than the sum of its proper divisors (3985412309453).

18112154922547 is a wasteful number, since it uses less digits than its factorization.

18112154922547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140767.

The product of its digits is 1612800, while the sum is 52.

The spelling of 18112154922547 in words is "eighteen trillion, one hundred twelve billion, one hundred fifty-four million, nine hundred twenty-two thousand, five hundred forty-seven".