51518092945300 has 18 divisors (see below), whose sum is σ = 111794261691518. Its totient is φ = 20607237178080.

The previous prime is 51518092945211. The next prime is 51518092945307. The reversal of 51518092945300 is 354929081515.

It can be written as a sum of positive squares in 3 ways, for example, as 17515246154884 + 34002846790416 = 4185122^2 + 5831196^2 .

It is a super-2 number, since 2×51518092945300² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51518092945307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257590464627 + ... + 257590464826.

Almost surely, 2^{51518092945300} is an apocalyptic number.

51518092945300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51518092945300 is an abundant number, since it is smaller than the sum of its proper divisors (60276168746218).

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

51518092945300 is a wasteful number, since it uses less digits than its factorization.

51518092945300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515180929467 (or 515180929460 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 51518092945300 in words is "fifty-one trillion, five hundred eighteen billion, ninety-two million, nine hundred forty-five thousand, three hundred".