51951002796313 has 4 divisors (see below), whose sum is σ = 51953915029120. Its totient is φ = 51948090563508.

The previous prime is 51951002796293. The next prime is 51951002796317. The reversal of 51951002796313 is 31369720015915.

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 not a de Polignac number, because 51951002796313 - 2⁹ = 51951002795801 is a prime.

It is a super-2 number, since 2×51951002796313² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51951002796317) 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, 1456089645 + ... + 1456125322.

It is an arithmetic number, because the mean of its divisors is an integer number (12988478757280).

Almost surely, 2^{51951002796313} is an apocalyptic number.

It is an amenable number.

51951002796313 is a deficient number, since it is larger than the sum of its proper divisors (2912232807).

51951002796313 is a wasteful number, since it uses less digits than its factorization.

51951002796313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912232806.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The spelling of 51951002796313 in words is "fifty-one trillion, nine hundred fifty-one billion, two million, seven hundred ninety-six thousand, three hundred thirteen".