51358809930 has 16 divisors (see below), whose sum is σ = 123261143904. Its totient is φ = 13695682640.

The previous prime is 51358809923. The next prime is 51358809937. The reversal of 51358809930 is 3990885315.

It is an interprime number because it is at equal distance from previous prime (51358809923) and next prime (51358809937).

It is not an unprimeable number, because it can be changed into a prime (51358809937) 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, 855980136 + ... + 855980195.

It is an arithmetic number, because the mean of its divisors is an integer number (7703821494).

Almost surely, 2^51358809930 is an apocalyptic number.

51358809930 is an abundant number, since it is smaller than the sum of its proper divisors (71902333974).

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

51358809930 is a wasteful number, since it uses less digits than its factorization.

51358809930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711960341.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 51358809930 in words is "fifty-one billion, three hundred fifty-eight million, eight hundred nine thousand, nine hundred thirty".