51324511323145 has 32 divisors (see below), whose sum is σ = 64035796003200. Its totient is φ = 39458709480960.

The previous prime is 51324511323143. The next prime is 51324511323157. The reversal of 51324511323145 is 54132311542315.

It is not a de Polignac number, because 51324511323145 - 2¹ = 51324511323143 is a prime.

It is a super-2 number, since 2×51324511323145² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51324511323098 and 51324511323107.

It is not an unprimeable number, because it can be changed into a prime (51324511323143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443568919 + ... + 443684611.

It is an arithmetic number, because the mean of its divisors is an integer number (2001118625100).

Almost surely, 2^{51324511323145} is an apocalyptic number.

It is an amenable number.

51324511323145 is a deficient number, since it is larger than the sum of its proper divisors (12711284680055).

51324511323145 is a wasteful number, since it uses less digits than its factorization.

51324511323145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148105.

The product of its digits is 216000, while the sum is 40.

The spelling of 51324511323145 in words is "fifty-one trillion, three hundred twenty-four billion, five hundred eleven million, three hundred twenty-three thousand, one hundred forty-five".