79436503872 has 336 divisors, whose sum is σ = 258229608000. Its totient is φ = 23927270400.

The previous prime is 79436503871. The next prime is 79436503873. The reversal of 79436503872 is 27830563497.

It is an interprime number because it is at equal distance from previous prime (79436503871) and next prime (79436503873).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79436503871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37843879 + ... + 37845977.

It is an arithmetic number, because the mean of its divisors is an integer number (768540500).

Almost surely, 2^79436503872 is an apocalyptic number.

79436503872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79436503872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129114804000).

79436503872 is an abundant number, since it is smaller than the sum of its proper divisors (178793104128).

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

79436503872 is a wasteful number, since it uses less digits than its factorization.

79436503872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 79436503872 in words is "seventy-nine billion, four hundred thirty-six million, five hundred three thousand, eight hundred seventy-two".