79155054405 has 48 divisors (see below), whose sum is σ = 165055163520. Its totient is φ = 34280682624.

The previous prime is 79155054389. The next prime is 79155054413. The reversal of 79155054405 is 50445055197.

It is a happy number.

79155054405 is a `hidden beast` number, since 7 + 9 + 1 + 550 + 54 + 40 + 5 = 666.

It is not a de Polignac number, because 79155054405 - 2⁴ = 79155054389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6606802 + ... + 6618771.

It is an arithmetic number, because the mean of its divisors is an integer number (3438649240).

Almost surely, 2^79155054405 is an apocalyptic number.

It is an amenable number.

79155054405 is an abundant number, since it is smaller than the sum of its proper divisors (85900109115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79155054405 is a wasteful number, since it uses less digits than its factorization.

79155054405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225610 (or 13225607 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 79155054405 in words is "seventy-nine billion, one hundred fifty-five million, fifty-four thousand, four hundred five".