51457111724 has 24 divisors (see below), whose sum is σ = 91606033680. Its totient is φ = 25284243456.

The previous prime is 51457111697. The next prime is 51457111729. The reversal of 51457111724 is 42711175415.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51457111729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725324 + ... + 793100.

It is an arithmetic number, because the mean of its divisors is an integer number (3816918070).

Almost surely, 2^51457111724 is an apocalyptic number.

It is an amenable number.

51457111724 is a deficient number, since it is larger than the sum of its proper divisors (40148921956).

51457111724 is a wasteful number, since it uses less digits than its factorization.

51457111724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71057 (or 71055 counting only the distinct ones).

The product of its digits is 39200, while the sum is 38.

The spelling of 51457111724 in words is "fifty-one billion, four hundred fifty-seven million, one hundred eleven thousand, seven hundred twenty-four".