79138708480 has 176 divisors, whose sum is σ = 204818955264. Its totient is φ = 29166796800.

The previous prime is 79138708447. The next prime is 79138708511. The reversal of 79138708480 is 8480783197.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68755905 + ... + 68757055.

It is an arithmetic number, because the mean of its divisors is an integer number (1163744064).

Almost surely, 2^79138708480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79138708480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102409477632).

79138708480 is an abundant number, since it is smaller than the sum of its proper divisors (125680246784).

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

79138708480 is a wasteful number, since it uses less digits than its factorization.

79138708480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 79138708480 in words is "seventy-nine billion, one hundred thirty-eight million, seven hundred eight thousand, four hundred eighty".