78799764924 has 168 divisors, whose sum is σ = 213253568640. Its totient is φ = 25453764000.

The previous prime is 78799764919. The next prime is 78799764929. The reversal of 78799764924 is 42946799787.

It is an interprime number because it is at equal distance from previous prime (78799764919) and next prime (78799764929).

It is a super-3 number, since 3×78799764924³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78799764929) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 12211899 + ... + 12218349.

It is an arithmetic number, because the mean of its divisors is an integer number (1269366480).

Almost surely, 2^78799764924 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 78799764924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106626784320).

78799764924 is an abundant number, since it is smaller than the sum of its proper divisors (134453803716).

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

78799764924 is a wasteful number, since it uses less digits than its factorization.

78799764924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6586 counting only the distinct ones).

The product of its digits is 384072192, while the sum is 72.

The spelling of 78799764924 in words is "seventy-eight billion, seven hundred ninety-nine million, seven hundred sixty-four thousand, nine hundred twenty-four".