74606616879 has 8 divisors (see below), whose sum is σ = 99487731840. Its totient is φ = 49731623256.

The previous prime is 74606616863. The next prime is 74606616881. The reversal of 74606616879 is 97861660647.

It is a happy number.

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

It is not a de Polignac number, because 74606616879 - 2⁴ = 74606616863 is a prime.

It is a super-2 number, since 2×74606616879² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74606616479) 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, 1501819 + ... + 1550700.

It is an arithmetic number, because the mean of its divisors is an integer number (12435966480).

Almost surely, 2^74606616879 is an apocalyptic number.

74606616879 is a deficient number, since it is larger than the sum of its proper divisors (24881114961).

74606616879 is a wasteful number, since it uses less digits than its factorization.

74606616879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060669.

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 74606616879 in words is "seventy-four billion, six hundred six million, six hundred sixteen thousand, eight hundred seventy-nine".