51484994496 has 280 divisors, whose sum is σ = 174029430960. Its totient is φ = 14909349888.

The previous prime is 51484994471. The next prime is 51484994497. The reversal of 51484994496 is 69449948415.

51484994496 is a `hidden beast` number, since 5 + 14 + 8 + 49 + 94 + 496 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51484994497) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1123195 + ... + 1168133.

It is an arithmetic number, because the mean of its divisors is an integer number (621533682).

Almost surely, 2^51484994496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51484994496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87014715480).

51484994496 is an abundant number, since it is smaller than the sum of its proper divisors (122544436464).

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

51484994496 is a wasteful number, since it uses less digits than its factorization.

51484994496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44993 (or 44974 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 51484994496 in words is "fifty-one billion, four hundred eighty-four million, nine hundred ninety-four thousand, four hundred ninety-six".