51802423634 has 32 divisors (see below), whose sum is σ = 84978040896. Its totient is φ = 23538588480.

The previous prime is 51802423633. The next prime is 51802423649. The reversal of 51802423634 is 43632420815.

It is not an unprimeable number, because it can be changed into a prime (51802423633) 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, 3471329 + ... + 3486219.

It is an arithmetic number, because the mean of its divisors is an integer number (2655563778).

Almost surely, 2^51802423634 is an apocalyptic number.

51802423634 is a deficient number, since it is larger than the sum of its proper divisors (33175617262).

51802423634 is a wasteful number, since it uses less digits than its factorization.

51802423634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16970.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 51802423634 in words is "fifty-one billion, eight hundred two million, four hundred twenty-three thousand, six hundred thirty-four".