51246309024 has 72 divisors (see below), whose sum is σ = 147576461760. Its totient is φ = 16865866368.

The previous prime is 51246309013. The next prime is 51246309029. The reversal of 51246309024 is 42090364215.

It is a happy number.

51246309024 is a `hidden beast` number, since 5 + 12 + 4 + 630 + 9 + 0 + 2 + 4 = 666.

51246309024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51246309024.

It is not an unprimeable number, because it can be changed into a prime (51246309029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1103442 + ... + 1148945.

It is an arithmetic number, because the mean of its divisors is an integer number (2049673080).

Almost surely, 2^51246309024 is an apocalyptic number.

It is an amenable number.

51246309024 is an abundant number, since it is smaller than the sum of its proper divisors (96330152736).

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

51246309024 is a wasteful number, since it uses less digits than its factorization.

51246309024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252482 (or 2252471 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 51246309024 in words is "fifty-one billion, two hundred forty-six million, three hundred nine thousand, twenty-four".