79223641536 has 336 divisors, whose sum is σ = 253010822400. Its totient is φ = 21732212736.

The previous prime is 79223641531. The next prime is 79223641559. The reversal of 79223641536 is 63514632297.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79223641531) 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, 10476925 + ... + 10484483.

It is an arithmetic number, because the mean of its divisors is an integer number (753008400).

Almost surely, 2^79223641536 is an apocalyptic number.

79223641536 is a gapful number since it is divisible by the number (76) 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 79223641536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126505411200).

79223641536 is an abundant number, since it is smaller than the sum of its proper divisors (173787180864).

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

79223641536 is a wasteful number, since it uses less digits than its factorization.

79223641536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636 (or 7613 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The spelling of 79223641536 in words is "seventy-nine billion, two hundred twenty-three million, six hundred forty-one thousand, five hundred thirty-six".