74860081489 has 4 divisors (see below), whose sum is σ = 75048646324. Its totient is φ = 74671516656.

The previous prime is 74860081481. The next prime is 74860081507. The reversal of 74860081489 is 98418006847.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52746012225 + 22114069264 = 229665^2 + 148708^2 .

It is a cyclic number.

It is not a de Polignac number, because 74860081489 - 2³ = 74860081481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74860081481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94281822 + ... + 94282615.

It is an arithmetic number, because the mean of its divisors is an integer number (18762161581).

Almost surely, 2^74860081489 is an apocalyptic number.

It is an amenable number.

74860081489 is a deficient number, since it is larger than the sum of its proper divisors (188564835).

74860081489 is a wasteful number, since it uses less digits than its factorization.

74860081489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188564834.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 74860081489 in words is "seventy-four billion, eight hundred sixty million, eighty-one thousand, four hundred eighty-nine".