51351313035669 has 4 divisors (see below), whose sum is σ = 68468417380896. Its totient is φ = 34234208690444.

The previous prime is 51351313035641. The next prime is 51351313035677. The reversal of 51351313035669 is 96653031315315.

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 51351313035669 - 2⁷ = 51351313035541 is a prime.

It is a super-2 number, since 2×51351313035669² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51351313035769) 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, 8558552172609 + ... + 8558552172614.

It is an arithmetic number, because the mean of its divisors is an integer number (17117104345224).

Almost surely, 2^{51351313035669} is an apocalyptic number.

It is an amenable number.

51351313035669 is a deficient number, since it is larger than the sum of its proper divisors (17117104345227).

51351313035669 is a wasteful number, since it uses less digits than its factorization.

51351313035669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117104345226.

The product of its (nonzero) digits is 3280500, while the sum is 51.

The spelling of 51351313035669 in words is "fifty-one trillion, three hundred fifty-one billion, three hundred thirteen million, thirty-five thousand, six hundred sixty-nine".