51274313453 has 4 divisors (see below), whose sum is σ = 55935614688. Its totient is φ = 46613012220.

The previous prime is 51274313443. The next prime is 51274313477. The reversal of 51274313453 is 35431347215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51274313453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51274313413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2330650601 + ... + 2330650622.

It is an arithmetic number, because the mean of its divisors is an integer number (13983903672).

Almost surely, 2^51274313453 is an apocalyptic number.

It is an amenable number.

51274313453 is a deficient number, since it is larger than the sum of its proper divisors (4661301235).

51274313453 is a wasteful number, since it uses less digits than its factorization.

51274313453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661301234.

The product of its digits is 151200, while the sum is 38.

The spelling of 51274313453 in words is "fifty-one billion, two hundred seventy-four million, three hundred thirteen thousand, four hundred fifty-three".