51483364920 has 96 divisors (see below), whose sum is σ = 180191793600. Its totient is φ = 12672827136.

The previous prime is 51483364913. The next prime is 51483364931. The reversal of 51483364920 is 2946338415.

51483364920 is a `hidden beast` number, since 51 + 4 + 83 + 36 + 492 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5495680 + ... + 5505039.

It is an arithmetic number, because the mean of its divisors is an integer number (1876997850).

Almost surely, 2^51483364920 is an apocalyptic number.

It is an amenable number.

51483364920 is an abundant number, since it is smaller than the sum of its proper divisors (128708428680).

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

51483364920 is a wasteful number, since it uses less digits than its factorization.

51483364920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000749 (or 11000742 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 51483364920 in words is "fifty-one billion, four hundred eighty-three million, three hundred sixty-four thousand, nine hundred twenty".