79213734405 has 64 divisors (see below), whose sum is σ = 156549335040. Its totient is φ = 37739520000.

The previous prime is 79213734371. The next prime is 79213734409. The reversal of 79213734405 is 50443731297.

79213734405 is a `hidden beast` number, since 79 + 2 + 137 + 3 + 440 + 5 = 666.

It is not a de Polignac number, because 79213734405 - 2¹³ = 79213726213 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79213734409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 673596 + ... + 782405.

It is an arithmetic number, because the mean of its divisors is an integer number (2446083360).

Almost surely, 2^79213734405 is an apocalyptic number.

It is an amenable number.

79213734405 is a deficient number, since it is larger than the sum of its proper divisors (77335600635).

79213734405 is a wasteful number, since it uses less digits than its factorization.

79213734405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456059 (or 1456053 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 79213734405 in words is "seventy-nine billion, two hundred thirteen million, seven hundred thirty-four thousand, four hundred five".