51418448892 has 48 divisors (see below), whose sum is σ = 133904942080. Its totient is φ = 17062616304.

The previous prime is 51418448881. The next prime is 51418448899. The reversal of 51418448892 is 29884481415.

51418448892 is a `hidden beast` number, since 514 + 1 + 8 + 4 + 48 + 89 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51418448899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043398 + ... + 1091565.

Almost surely, 2^51418448892 is an apocalyptic number.

It is an amenable number.

51418448892 is an abundant number, since it is smaller than the sum of its proper divisors (82486493188).

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

51418448892 is a wasteful number, since it uses less digits than its factorization.

51418448892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135199 (or 2135191 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The spelling of 51418448892 in words is "fifty-one billion, four hundred eighteen million, four hundred forty-eight thousand, eight hundred ninety-two".