1864636996416 has 56 divisors (see below), whose sum is σ = 4944965618304. Its totient is φ = 620103536640.

The previous prime is 1864636996373. The next prime is 1864636996477. The reversal of 1864636996416 is 6146996364681.

It is a super-2 number, since 2×1864636996416² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 11183665 + ... + 11349168.

Almost surely, 2^{1864636996416} is an apocalyptic number.

1864636996416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1864636996416 is an abundant number, since it is smaller than the sum of its proper divisors (3080328621888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1864636996416 is a wasteful number, since it uses less digits than its factorization.

1864636996416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22533279 (or 22533269 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 69.

The spelling of 1864636996416 in words is "one trillion, eight hundred sixty-four billion, six hundred thirty-six million, nine hundred ninety-six thousand, four hundred sixteen".