7918295878 has 4 divisors (see below), whose sum is σ = 11877443820. Its totient is φ = 3959147938.

The previous prime is 7918295873. The next prime is 7918295881. The reversal of 7918295878 is 8785928197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8785928197 = 6553 ⋅1340749.

It is a super-2 number, since 2×7918295878² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7918295873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979573968 + ... + 1979573971.

It is an arithmetic number, because the mean of its divisors is an integer number (2969360955).

Almost surely, 2^7918295878 is an apocalyptic number.

7918295878 is a deficient number, since it is larger than the sum of its proper divisors (3959147942).

7918295878 is a wasteful number, since it uses less digits than its factorization.

7918295878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959147941.

The product of its digits is 20321280, while the sum is 64.

The square root of 7918295878 is about 88984.8070065896. The cubic root of 7918295878 is about 1993.1680117089.

The spelling of 7918295878 in words is "seven billion, nine hundred eighteen million, two hundred ninety-five thousand, eight hundred seventy-eight".