51230771004 has 48 divisors (see below), whose sum is σ = 137020851968. Its totient is φ = 14593920768.

The previous prime is 51230770999. The next prime is 51230771023. The reversal of 51230771004 is 40017703215.

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, 876574 + ... + 933189.

Almost surely, 2^51230771004 is an apocalyptic number.

It is an amenable number.

51230771004 is an abundant number, since it is smaller than the sum of its proper divisors (85790080964).

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

51230771004 is a wasteful number, since it uses less digits than its factorization.

51230771004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810114 (or 1810112 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 51230771004 in words is "fifty-one billion, two hundred thirty million, seven hundred seventy-one thousand, four".