51810259996 has 12 divisors (see below), whose sum is σ = 98910496440. Its totient is φ = 23550118160.

The previous prime is 51810259987. The next prime is 51810260003. The reversal of 51810259996 is 69995201815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588752911 + ... + 588752998.

It is an arithmetic number, because the mean of its divisors is an integer number (8242541370).

Almost surely, 2^51810259996 is an apocalyptic number.

It is an amenable number.

51810259996 is a deficient number, since it is larger than the sum of its proper divisors (47100236444).

51810259996 is a wasteful number, since it uses less digits than its factorization.

51810259996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177505924 (or 1177505922 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 55.

The spelling of 51810259996 in words is "fifty-one billion, eight hundred ten million, two hundred fifty-nine thousand, nine hundred ninety-six".