74279986476 has 96 divisors (see below), whose sum is σ = 185533286400. Its totient is φ = 23078415360.

The previous prime is 74279986427. The next prime is 74279986477. The reversal of 74279986476 is 67468997247.

It is a self number, because there is not a number n which added to its sum of digits gives 74279986476.

It is not an unprimeable number, because it can be changed into a prime (74279986477) 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, 4511956 + ... + 4528388.

It is an arithmetic number, because the mean of its divisors is an integer number (1932638400).

Almost surely, 2^74279986476 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 74279986476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92766643200).

74279986476 is an abundant number, since it is smaller than the sum of its proper divisors (111253299924).

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

74279986476 is a wasteful number, since it uses less digits than its factorization.

74279986476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16919 (or 16917 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 69.

The spelling of 74279986476 in words is "seventy-four billion, two hundred seventy-nine million, nine hundred eighty-six thousand, four hundred seventy-six".