51326048652 has 24 divisors (see below), whose sum is σ = 121790625600. Its totient is φ = 16818704976.

The previous prime is 51326048647. The next prime is 51326048681. The reversal of 51326048652 is 25684062315.

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, 36246502 + ... + 36247917.

It is an arithmetic number, because the mean of its divisors is an integer number (5074609400).

Almost surely, 2^51326048652 is an apocalyptic number.

It is an amenable number.

51326048652 is an abundant number, since it is smaller than the sum of its proper divisors (70464576948).

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

51326048652 is a wasteful number, since it uses less digits than its factorization.

51326048652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72494485 (or 72494483 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 51326048652 in words is "fifty-one billion, three hundred twenty-six million, forty-eight thousand, six hundred fifty-two".