51137195123 has 12 divisors (see below), whose sum is σ = 59528725200. Its totient is φ = 43800491952.

The previous prime is 51137195113. The next prime is 51137195149. The reversal of 51137195123 is 32159173115.

51137195123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51137195123 - 2²² = 51133000819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51137195113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304436 + ... + 441537.

It is an arithmetic number, because the mean of its divisors is an integer number (4960727100).

Almost surely, 2^51137195123 is an apocalyptic number.

51137195123 is a deficient number, since it is larger than the sum of its proper divisors (8391530077).

51137195123 is a wasteful number, since it uses less digits than its factorization.

51137195123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747386 (or 747379 counting only the distinct ones).

The product of its digits is 28350, while the sum is 38.

The spelling of 51137195123 in words is "fifty-one billion, one hundred thirty-seven million, one hundred ninety-five thousand, one hundred twenty-three".