79155878277 has 16 divisors (see below), whose sum is σ = 121047737472. Its totient is φ = 45070959360.

The previous prime is 79155878251. The next prime is 79155878303. The reversal of 79155878277 is 77287855197.

It is an interprime number because it is at equal distance from previous prime (79155878251) and next prime (79155878303).

It is not a de Polignac number, because 79155878277 - 2¹⁴ = 79155861893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79155878077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6701088 + ... + 6712889.

It is an arithmetic number, because the mean of its divisors is an integer number (7565483592).

Almost surely, 2^79155878277 is an apocalyptic number.

It is an amenable number.

79155878277 is a deficient number, since it is larger than the sum of its proper divisors (41891859195).

79155878277 is a wasteful number, since it uses less digits than its factorization.

79155878277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414268.

The product of its digits is 69148800, while the sum is 66.

The spelling of 79155878277 in words is "seventy-nine billion, one hundred fifty-five million, eight hundred seventy-eight thousand, two hundred seventy-seven".