51038081654 has 16 divisors (see below), whose sum is σ = 88132498848. Its totient is φ = 21713802432.

The previous prime is 51038081609. The next prime is 51038081707. The reversal of 51038081654 is 45618083015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13303109 + ... + 13306944.

It is an arithmetic number, because the mean of its divisors is an integer number (5508281178).

Almost surely, 2^51038081654 is an apocalyptic number.

51038081654 is a deficient number, since it is larger than the sum of its proper divisors (37094417194).

51038081654 is a wasteful number, since it uses less digits than its factorization.

51038081654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26610199.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 51038081654 in words is "fifty-one billion, thirty-eight million, eighty-one thousand, six hundred fifty-four".