79223790528 has 140 divisors (see below), whose sum is σ = 235696218472. Its totient is φ = 26312117760.

The previous prime is 79223790523. The next prime is 79223790533. The reversal of 79223790528 is 82509732297.

79223790528 is a `hidden beast` number, since 7 + 9 + 2 + 23 + 7 + 90 + 528 = 666.

It is an interprime number because it is at equal distance from previous prime (79223790523) and next prime (79223790533).

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 (79223790523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1408383 + ... + 1463553.

Almost surely, 2^79223790528 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 79223790528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117848109236).

79223790528 is an abundant number, since it is smaller than the sum of its proper divisors (156472427944).

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

79223790528 is a wasteful number, since it uses less digits than its factorization.

79223790528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55472 (or 55453 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 79223790528 in words is "seventy-nine billion, two hundred twenty-three million, seven hundred ninety thousand, five hundred twenty-eight".