51465206108 has 12 divisors (see below), whose sum is σ = 90075312432. Its totient is φ = 25729402560.

The previous prime is 51465206081. The next prime is 51465206123. The reversal of 51465206108 is 80160256415.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763760 + ... + 828407.

It is an arithmetic number, because the mean of its divisors is an integer number (7506276036).

Almost surely, 2^51465206108 is an apocalyptic number.

It is an amenable number.

51465206108 is a deficient number, since it is larger than the sum of its proper divisors (38610106324).

51465206108 is a wasteful number, since it uses less digits than its factorization.

51465206108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600252 (or 1600250 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 51465206108 in words is "fifty-one billion, four hundred sixty-five million, two hundred six thousand, one hundred eight".