51340526980 has 24 divisors (see below), whose sum is σ = 107831834712. Its totient is φ = 20533024512.

The previous prime is 51340526959. The next prime is 51340527001. The reversal of 51340526980 is 8962504315.

It is an interprime number because it is at equal distance from previous prime (51340526959) and next prime (51340527001).

It can be written as a sum of positive squares in 4 ways, for example, as 604766464 + 50735760516 = 24592^2 + 225246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64807 + ... + 326926.

It is an arithmetic number, because the mean of its divisors is an integer number (4492993113).

Almost surely, 2^51340526980 is an apocalyptic number.

It is an amenable number.

51340526980 is an abundant number, since it is smaller than the sum of its proper divisors (56491307732).

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

51340526980 is a wasteful number, since it uses less digits than its factorization.

51340526980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398295 (or 398293 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 51340526980 in words is "fifty-one billion, three hundred forty million, five hundred twenty-six thousand, nine hundred eighty".