77363748924 has 192 divisors, whose sum is σ = 233811443712. Its totient is φ = 19321286400.

The previous prime is 77363748923. The next prime is 77363748929. The reversal of 77363748924 is 42984736377.

It is a super-2 number, since 2×77363748924² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77363748923) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4488507 + ... + 4505709.

It is an arithmetic number, because the mean of its divisors is an integer number (1217767936).

Almost surely, 2^77363748924 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 77363748924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116905721856).

77363748924 is an abundant number, since it is smaller than the sum of its proper divisors (156447694788).

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

77363748924 is a wasteful number, since it uses less digits than its factorization.

77363748924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17416 (or 17414 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 60.

The spelling of 77363748924 in words is "seventy-seven billion, three hundred sixty-three million, seven hundred forty-eight thousand, nine hundred twenty-four".