51846435902 has 4 divisors (see below), whose sum is σ = 77769653856. Its totient is φ = 25923217950.

The previous prime is 51846435871. The next prime is 51846435911. The reversal of 51846435902 is 20953464815.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12961608974 + ... + 12961608977.

It is an arithmetic number, because the mean of its divisors is an integer number (19442413464).

Almost surely, 2^51846435902 is an apocalyptic number.

51846435902 is a deficient number, since it is larger than the sum of its proper divisors (25923217954).

51846435902 is a wasteful number, since it uses less digits than its factorization.

51846435902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25923217953.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 51846435902 in words is "fifty-one billion, eight hundred forty-six million, four hundred thirty-five thousand, nine hundred two".