5111715878278 has 8 divisors (see below), whose sum is σ = 7764631714080. Its totient is φ = 2523505306920.

The previous prime is 5111715878261. The next prime is 5111715878309. The reversal of 5111715878278 is 8728785171115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5111715878278² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16176315913 + ... + 16176316228.

It is an arithmetic number, because the mean of its divisors is an integer number (970578964260).

Almost surely, 2^{5111715878278} is an apocalyptic number.

5111715878278 is a deficient number, since it is larger than the sum of its proper divisors (2652915835802).

5111715878278 is a wasteful number, since it uses less digits than its factorization.

5111715878278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32352632222.

The product of its digits is 8780800, while the sum is 61.

The spelling of 5111715878278 in words is "five trillion, one hundred eleven billion, seven hundred fifteen million, eight hundred seventy-eight thousand, two hundred seventy-eight".