51193473375 has 64 divisors (see below), whose sum is σ = 93546685440. Its totient is φ = 24656400000.

The previous prime is 51193473371. The next prime is 51193473389. The reversal of 51193473375 is 57337439115.

It is not a de Polignac number, because 51193473375 - 2² = 51193473371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51193473371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 581781 + ... + 663969.

It is an arithmetic number, because the mean of its divisors is an integer number (1461666960).

Almost surely, 2^51193473375 is an apocalyptic number.

51193473375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51193473375 is a deficient number, since it is larger than the sum of its proper divisors (42353212065).

51193473375 is a wasteful number, since it uses less digits than its factorization.

51193473375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82369 (or 82359 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 48.

The spelling of 51193473375 in words is "fifty-one billion, one hundred ninety-three million, four hundred seventy-three thousand, three hundred seventy-five".