74277539880 has 128 divisors (see below), whose sum is σ = 225528019200. Its totient is φ = 19568812032.

The previous prime is 74277539879. The next prime is 74277539881. The reversal of 74277539880 is 8893577247.

It is an interprime number because it is at equal distance from previous prime (74277539879) and next prime (74277539881).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (74277539881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4609197 + ... + 4625283.

It is an arithmetic number, because the mean of its divisors is an integer number (1761937650).

Almost surely, 2^74277539880 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 74277539880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112764009600).

74277539880 is an abundant number, since it is smaller than the sum of its proper divisors (151250479320).

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

74277539880 is a wasteful number, since it uses less digits than its factorization.

74277539880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16563 (or 16559 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 74277539880 in words is "seventy-four billion, two hundred seventy-seven million, five hundred thirty-nine thousand, eight hundred eighty".