51445088772507 has 48 divisors (see below), whose sum is σ = 81513830082048. Its totient is φ = 32356172312640.

The previous prime is 51445088772379. The next prime is 51445088772509. The reversal of 51445088772507 is 70527788054415.

51445088772507 is a `hidden beast` number, since 5 + 1 + 4 + 4 + 50 + 8 + 8 + 7 + 72 + 507 = 666.

It is not a de Polignac number, because 51445088772507 - 2⁷ = 51445088772379 is a prime.

It is a super-2 number, since 2×51445088772507² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51445088772509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62637919 + ... + 63453912.

It is an arithmetic number, because the mean of its divisors is an integer number (1698204793376).

Almost surely, 2^{51445088772507} is an apocalyptic number.

51445088772507 is a deficient number, since it is larger than the sum of its proper divisors (30068741309541).

51445088772507 is a wasteful number, since it uses less digits than its factorization.

51445088772507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126091942 (or 126091930 counting only the distinct ones).

The product of its (nonzero) digits is 87808000, while the sum is 63.

The spelling of 51445088772507 in words is "fifty-one trillion, four hundred forty-five billion, eighty-eight million, seven hundred seventy-two thousand, five hundred seven".