16872995678450 has 18 divisors (see below), whose sum is σ = 31383825986919. Its totient is φ = 6749186653120.

The previous prime is 16872995678443. The next prime is 16872995678471. The reversal of 16872995678450 is 5487659927861.

It can be written as a sum of positive squares in 5 ways, for example, as 2857563727489 + 14015431950961 = 1690433^2 + 3743719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2904565.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28755194 + ... + 29336106.

Almost surely, 2^{16872995678450} is an apocalyptic number.

16872995678450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16872995678450 is a deficient number, since it is larger than the sum of its proper divisors (14510830308469).

16872995678450 is an frugal number, since it uses more digits than its factorization.

16872995678450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161838 (or 580920 counting only the distinct ones).

The product of its (nonzero) digits is 1828915200, while the sum is 77.

The spelling of 16872995678450 in words is "sixteen trillion, eight hundred seventy-two billion, nine hundred ninety-five million, six hundred seventy-eight thousand, four hundred fifty".