77374074344 has 64 divisors (see below), whose sum is σ = 167594486400. Its totient is φ = 32802336000.

The previous prime is 77374074317. The next prime is 77374074361. The reversal of 77374074344 is 44347047377.

It is a junction number, because it is equal to n+sod(n) for n = 77374074292 and 77374074301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6945659 + ... + 6956789.

It is an arithmetic number, because the mean of its divisors is an integer number (2618663850).

Almost surely, 2^77374074344 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 77374074344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83797243200).

77374074344 is an abundant number, since it is smaller than the sum of its proper divisors (90220412056).

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

77374074344 is a wasteful number, since it uses less digits than its factorization.

77374074344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12474 (or 12470 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 50.

The spelling of 77374074344 in words is "seventy-seven billion, three hundred seventy-four million, seventy-four thousand, three hundred forty-four".