51431004906008 has 64 divisors (see below), whose sum is σ = 118689675874560. Its totient is φ = 20345861644416.

The previous prime is 51431004905983. The next prime is 51431004906011. The reversal of 51431004906008 is 80060940013415.

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, 31607435 + ... + 33194757.

It is an arithmetic number, because the mean of its divisors is an integer number (1854526185540).

Almost surely, 2^{51431004906008} is an apocalyptic number.

It is an amenable number.

51431004906008 is an abundant number, since it is smaller than the sum of its proper divisors (67258670968552).

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

51431004906008 is a wasteful number, since it uses less digits than its factorization.

51431004906008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631856 (or 1631852 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 51431004906008 in words is "fifty-one trillion, four hundred thirty-one billion, four million, nine hundred six thousand, eight".