77225324124 has 96 divisors (see below), whose sum is σ = 204283505664. Its totient is φ = 22527267840.

The previous prime is 77225324123. The next prime is 77225324201. The reversal of 77225324124 is 42142352277.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77225324123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310209 + ... + 500679.

It is an arithmetic number, because the mean of its divisors is an integer number (2127953184).

Almost surely, 2^77225324124 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 77225324124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102141752832).

77225324124 is an abundant number, since it is smaller than the sum of its proper divisors (127058181540).

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

77225324124 is a wasteful number, since it uses less digits than its factorization.

77225324124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190627 (or 190625 counting only the distinct ones).

The product of its digits is 188160, while the sum is 39.

The spelling of 77225324124 in words is "seventy-seven billion, two hundred twenty-five million, three hundred twenty-four thousand, one hundred twenty-four".