74664291145 has 8 divisors (see below), whose sum is σ = 89841285504. Its totient is φ = 59568675504.

The previous prime is 74664291137. The next prime is 74664291197. The reversal of 74664291145 is 54119246647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74664291145 - 2³ = 74664291137 is a prime.

It is a super-2 number, since 2×74664291145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20342659 + ... + 20346328.

It is an arithmetic number, because the mean of its divisors is an integer number (11230160688).

Almost surely, 2^74664291145 is an apocalyptic number.

It is an amenable number.

74664291145 is a deficient number, since it is larger than the sum of its proper divisors (15176994359).

74664291145 is a wasteful number, since it uses less digits than its factorization.

74664291145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40689359.

The product of its digits is 1451520, while the sum is 49.

The spelling of 74664291145 in words is "seventy-four billion, six hundred sixty-four million, two hundred ninety-one thousand, one hundred forty-five".