79078309739520 has 1408 divisors, whose sum is σ = 338981313484800. Its totient is φ = 15261313794048.

The previous prime is 79078309739519. The next prime is 79078309739551. The reversal of 79078309739520 is 2593790387097.

It is a super-3 number, since 3×79078309739520³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 770114422 + ... + 770217098.

Almost surely, 2^{79078309739520} is an apocalyptic number.

79078309739520 is a gapful number since it is divisible by the number (70) 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 79078309739520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169490656742400).

79078309739520 is an abundant number, since it is smaller than the sum of its proper divisors (259903003745280).

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

79078309739520 is a wasteful number, since it uses less digits than its factorization.

79078309739520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102773 (or 102755 counting only the distinct ones).

The product of its (nonzero) digits is 180033840, while the sum is 69.

The spelling of 79078309739520 in words is "seventy-nine trillion, seventy-eight billion, three hundred nine million, seven hundred thirty-nine thousand, five hundred twenty".