18740405463 has 16 divisors (see below), whose sum is σ = 26914698720. Its totient is φ = 11530243584.

The previous prime is 18740405461. The next prime is 18740405471. The reversal of 18740405463 is 36450404781.

It is not a de Polignac number, because 18740405463 - 2¹ = 18740405461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18740405461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160083 + ... + 251211.

It is an arithmetic number, because the mean of its divisors is an integer number (1682168670).

Almost surely, 2^18740405463 is an apocalyptic number.

18740405463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18740405463 is a deficient number, since it is larger than the sum of its proper divisors (8174293257).

18740405463 is a wasteful number, since it uses less digits than its factorization.

18740405463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96418.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 18740405463 in words is "eighteen billion, seven hundred forty million, four hundred five thousand, four hundred sixty-three".