16827813772 has 24 divisors (see below), whose sum is σ = 36715230720. Its totient is φ = 6556290960.

The previous prime is 16827813757. The next prime is 16827813773. The reversal of 16827813772 is 27731872861.

It is a super-2 number, since 2×16827813772² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16827813773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27317572 + ... + 27318187.

It is an arithmetic number, because the mean of its divisors is an integer number (1529801280).

Almost surely, 2^16827813772 is an apocalyptic number.

It is an amenable number.

16827813772 is an abundant number, since it is smaller than the sum of its proper divisors (19887416948).

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

16827813772 is a wasteful number, since it uses less digits than its factorization.

16827813772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54635781 (or 54635779 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The spelling of 16827813772 in words is "sixteen billion, eight hundred twenty-seven million, eight hundred thirteen thousand, seven hundred seventy-two".