51692877694 has 4 divisors (see below), whose sum is σ = 77539316544. Its totient is φ = 25846438846.

The previous prime is 51692877661. The next prime is 51692877701. The reversal of 51692877694 is 49677829615.

51692877694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12923219422 + ... + 12923219425.

It is an arithmetic number, because the mean of its divisors is an integer number (19384829136).

Almost surely, 2^51692877694 is an apocalyptic number.

51692877694 is a deficient number, since it is larger than the sum of its proper divisors (25846438850).

51692877694 is a wasteful number, since it uses less digits than its factorization.

51692877694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25846438849.

The product of its digits is 45722880, while the sum is 64.

The spelling of 51692877694 in words is "fifty-one billion, six hundred ninety-two million, eight hundred seventy-seven thousand, six hundred ninety-four".