74401689599 has 8 divisors (see below), whose sum is σ = 75192147888. Its totient is φ = 73614602880.

The previous prime is 74401689559. The next prime is 74401689613. The reversal of 74401689599 is 99598610447.

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 74401689599 - 2⁸ = 74401689343 is a prime.

It is a super-2 number, since 2×74401689599² (a number of 23 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 (74401689559) 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, 798512 + ... + 886805.

It is an arithmetic number, because the mean of its divisors is an integer number (9399018486).

Almost surely, 2^74401689599 is an apocalyptic number.

74401689599 is a deficient number, since it is larger than the sum of its proper divisors (790458289).

74401689599 is a wasteful number, since it uses less digits than its factorization.

74401689599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685785.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 74401689599 in words is "seventy-four billion, four hundred one million, six hundred eighty-nine thousand, five hundred ninety-nine".