51092115905858 has 16 divisors (see below), whose sum is σ = 79282045340280. Its totient is φ = 24664793588736.

The previous prime is 51092115905851. The next prime is 51092115905893. The reversal of 51092115905858 is 85850951129015.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46503493506409 + 4588622399449 = 6819347^2 + 2142107^2 .

It is a super-2 number, since 2×51092115905858² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51092115905797 and 51092115905806.

It is not an unprimeable number, because it can be changed into a prime (51092115905851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567441 + ... + 10429572.

Almost surely, 2^{51092115905858} is an apocalyptic number.

51092115905858 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51092115905858 is a deficient number, since it is larger than the sum of its proper divisors (28189929434422).

51092115905858 is a wasteful number, since it uses less digits than its factorization.

51092115905858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13064821.

The product of its (nonzero) digits is 6480000, while the sum is 59.

The spelling of 51092115905858 in words is "fifty-one trillion, ninety-two billion, one hundred fifteen million, nine hundred five thousand, eight hundred fifty-eight".