51157361721326 has 16 divisors (see below), whose sum is σ = 87727460434560. Its totient is φ = 21917302081080.

The previous prime is 51157361721307. The next prime is 51157361721461. The reversal of 51157361721326 is 62312716375115.

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, 606749156 + ... + 606833463.

It is an arithmetic number, because the mean of its divisors is an integer number (5482966277160).

Almost surely, 2^{51157361721326} is an apocalyptic number.

51157361721326 is a deficient number, since it is larger than the sum of its proper divisors (36570098713234).

51157361721326 is a wasteful number, since it uses less digits than its factorization.

51157361721326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213585639.

The product of its digits is 1587600, while the sum is 50.

The spelling of 51157361721326 in words is "fifty-one trillion, one hundred fifty-seven billion, three hundred sixty-one million, seven hundred twenty-one thousand, three hundred twenty-six".