51857088770 has 16 divisors (see below), whose sum is σ = 94168803960. Its totient is φ = 20559270144.

The previous prime is 51857088769. The next prime is 51857088781. The reversal of 51857088770 is 7788075815.

It can be written as a sum of positive squares in 4 ways, for example, as 31167430849 + 20689657921 = 176543^2 + 143839^2 .

It is a super-2 number, since 2×51857088770² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22944485 + ... + 22946744.

Almost surely, 2^51857088770 is an apocalyptic number.

51857088770 is a deficient number, since it is larger than the sum of its proper divisors (42311715190).

51857088770 is a wasteful number, since it uses less digits than its factorization.

51857088770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45891349.

The product of its (nonzero) digits is 4390400, while the sum is 56.

The spelling of 51857088770 in words is "fifty-one billion, eight hundred fifty-seven million, eighty-eight thousand, seven hundred seventy".