15873966486900 has 90 divisors (see below), whose sum is σ = 51457128180150. Its totient is φ = 4233057727680.

The previous prime is 15873966486899. The next prime is 15873966486923. The reversal of 15873966486900 is 968466937851.

15873966486900 is a `hidden beast` number, since 1 + 5 + 87 + 3 + 9 + 66 + 486 + 9 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1594002201444 + 14279964285456 = 1262538^2 + 3778884^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×15873966486900² (a number of 27 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 29 ways as a sum of consecutive naturals, for example, 979866375 + ... + 979882574.

Almost surely, 2^{15873966486900} is an apocalyptic number.

15873966486900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15873966486900 is an abundant number, since it is smaller than the sum of its proper divisors (35583161693250).

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

15873966486900 is a wasteful number, since it uses less digits than its factorization.

15873966486900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959748975 (or 1959748959 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 15873966486900 in words is "fifteen trillion, eight hundred seventy-three billion, nine hundred sixty-six million, four hundred eighty-six thousand, nine hundred".