51501776120 has 16 divisors (see below), whose sum is σ = 115878996360. Its totient is φ = 20600710432.

The previous prime is 51501776119. The next prime is 51501776129. The reversal of 51501776120 is 2167710515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51501776129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643772162 + ... + 643772241.

Almost surely, 2^51501776120 is an apocalyptic number.

It is an amenable number.

51501776120 is an abundant number, since it is smaller than the sum of its proper divisors (64377220240).

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

51501776120 is a wasteful number, since it uses less digits than its factorization.

51501776120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287544414 (or 1287544410 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 51501776120 in words is "fifty-one billion, five hundred one million, seven hundred seventy-six thousand, one hundred twenty".