51156351444026 has 16 divisors (see below), whose sum is σ = 76977147212424. Its totient is φ = 25497303537984.

The previous prime is 51156351444013. The next prime is 51156351444041. The reversal of 51156351444026 is 62044415365115.

It can be written as a sum of positive squares in 4 ways, for example, as 33910811243401 + 17245540200625 = 5823299^2 + 4152775^2 .

It is a super-2 number, since 2×51156351444026² (a number of 28 digits) contains 22 as substring.

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, 144180176 + ... + 144534548.

Almost surely, 2^{51156351444026} is an apocalyptic number.

51156351444026 is a deficient number, since it is larger than the sum of its proper divisors (25820795768398).

51156351444026 is a wasteful number, since it uses less digits than its factorization.

51156351444026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582385.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 51156351444026 in words is "fifty-one trillion, one hundred fifty-six billion, three hundred fifty-one million, four hundred forty-four thousand, twenty-six".