74698489647 has 12 divisors (see below), whose sum is σ = 107905120440. Its totient is φ = 49795622928.

The previous prime is 74698489631. The next prime is 74698489661.

74698489647 is a `hidden beast` number, since 7 + 469 + 84 + 89 + 6 + 4 + 7 = 666.

74698489647 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74698489647 - 2⁴ = 74698489631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74698489667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136572 + ... + 409937.

It is an arithmetic number, because the mean of its divisors is an integer number (8992093370).

Almost surely, 2^74698489647 is an apocalyptic number.

74698489647 is a deficient number, since it is larger than the sum of its proper divisors (33206630793).

74698489647 is a wasteful number, since it uses less digits than its factorization.

74698489647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561702 (or 561699 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 72.

The spelling of 74698489647 in words is "seventy-four billion, six hundred ninety-eight million, four hundred eighty-nine thousand, six hundred forty-seven".