51122657886 has 32 divisors (see below), whose sum is σ = 103907362848. Its totient is φ = 16765056000.

The previous prime is 51122657869. The next prime is 51122657891. The reversal of 51122657886 is 68875622115.

It is a super-2 number, since 2×51122657886² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26886 + ... + 320886.

It is an arithmetic number, because the mean of its divisors is an integer number (3247105089).

Almost surely, 2^51122657886 is an apocalyptic number.

51122657886 is an abundant number, since it is smaller than the sum of its proper divisors (52784704962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51122657886 is a wasteful number, since it uses less digits than its factorization.

51122657886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294476.

The product of its digits is 1612800, while the sum is 51.

The spelling of 51122657886 in words is "fifty-one billion, one hundred twenty-two million, six hundred fifty-seven thousand, eight hundred eighty-six".