18765156463652 has 48 divisors (see below), whose sum is σ = 35180408390400. Its totient is φ = 8726968968192.

The previous prime is 18765156463637. The next prime is 18765156463657. The reversal of 18765156463652 is 25636465156781.

It is not an unprimeable number, because it can be changed into a prime (18765156463657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660224 + ... + 6161672.

It is an arithmetic number, because the mean of its divisors is an integer number (732925174800).

Almost surely, 2^{18765156463652} is an apocalyptic number.

It is an amenable number.

18765156463652 is a deficient number, since it is larger than the sum of its proper divisors (16415251926748).

18765156463652 is a wasteful number, since it uses less digits than its factorization.

18765156463652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5502060 (or 5502058 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 65.

The spelling of 18765156463652 in words is "eighteen trillion, seven hundred sixty-five billion, one hundred fifty-six million, four hundred sixty-three thousand, six hundred fifty-two".