51069946313319 has 4 divisors (see below), whose sum is σ = 68093261751096. Its totient is φ = 34046630875544.

The previous prime is 51069946313299. The next prime is 51069946313329. The reversal of 51069946313319 is 91331364996015.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51069946313319 - 2²⁷ = 51069812095591 is a prime.

It is a super-2 number, since 2×51069946313319² (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 (51069946313329) 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, 8511657718884 + ... + 8511657718889.

It is an arithmetic number, because the mean of its divisors is an integer number (17023315437774).

Almost surely, 2^{51069946313319} is an apocalyptic number.

51069946313319 is a deficient number, since it is larger than the sum of its proper divisors (17023315437777).

51069946313319 is a wasteful number, since it uses less digits than its factorization.

51069946313319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023315437776.

The product of its (nonzero) digits is 14171760, while the sum is 60.

The spelling of 51069946313319 in words is "fifty-one trillion, sixty-nine billion, nine hundred forty-six million, three hundred thirteen thousand, three hundred nineteen".