74788833816 has 320 divisors, whose sum is σ = 224591875200. Its totient is φ = 23209804800.

The previous prime is 74788833811. The next prime is 74788833887. The reversal of 74788833816 is 61833888747.

74788833816 is a `hidden beast` number, since 7 + 478 + 8 + 83 + 3 + 81 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74788833811) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 60753921 + ... + 60755151.

It is an arithmetic number, because the mean of its divisors is an integer number (701849610).

Almost surely, 2^74788833816 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 74788833816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112295937600).

74788833816 is an abundant number, since it is smaller than the sum of its proper divisors (149803041384).

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

74788833816 is a wasteful number, since it uses less digits than its factorization.

74788833816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1379 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 74788833816 in words is "seventy-four billion, seven hundred eighty-eight million, eight hundred thirty-three thousand, eight hundred sixteen".