74901664187999 has 8 divisors (see below), whose sum is σ = 81711026751360. Its totient is φ = 68092321685400.

The previous prime is 74901664187927. The next prime is 74901664188031. The reversal of 74901664187999 is 99978146610947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74901664187999 is a prime.

It is a super-2 number, since 2×74901664187999² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74901664189999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3406622 + ... + 12704660.

It is an arithmetic number, because the mean of its divisors is an integer number (10213878343920).

Almost surely, 2^{74901664187999} is an apocalyptic number.

74901664187999 is a deficient number, since it is larger than the sum of its proper divisors (6809362563361).

74901664187999 is a wasteful number, since it uses less digits than its factorization.

74901664187999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030381.

The product of its (nonzero) digits is 1481421312, while the sum is 80.

The spelling of 74901664187999 in words is "seventy-four trillion, nine hundred one billion, six hundred sixty-four million, one hundred eighty-seven thousand, nine hundred ninety-nine".