2156746476512 has 48 divisors (see below), whose sum is σ = 4470045325200. Its totient is φ = 1021508858880.

The previous prime is 2156746476499. The next prime is 2156746476523.

2156746476512 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2156746476512² (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, 5727914 + ... + 6092822.

It is an arithmetic number, because the mean of its divisors is an integer number (93125944275).

Almost surely, 2^{2156746476512} is an apocalyptic number.

It is an amenable number.

2156746476512 is an abundant number, since it is smaller than the sum of its proper divisors (2313298848688).

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

2156746476512 is a wasteful number, since it uses less digits than its factorization.

2156746476512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374659 (or 374651 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The spelling of 2156746476512 in words is "two trillion, one hundred fifty-six billion, seven hundred forty-six million, four hundred seventy-six thousand, five hundred twelve".