51963398140 has 48 divisors (see below), whose sum is σ = 113891883840. Its totient is φ = 19877411840.

The previous prime is 51963398101. The next prime is 51963398159. The reversal of 51963398140 is 4189336915.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2930100 + ... + 2947780.

It is an arithmetic number, because the mean of its divisors is an integer number (2372747580).

Almost surely, 2^51963398140 is an apocalyptic number.

It is an amenable number.

51963398140 is an abundant number, since it is smaller than the sum of its proper divisors (61928485700).

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

51963398140 is a wasteful number, since it uses less digits than its factorization.

51963398140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24102 (or 24100 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 51963398140 in words is "fifty-one billion, nine hundred sixty-three million, three hundred ninety-eight thousand, one hundred forty".