74556091845079 has 32 divisors (see below), whose sum is σ = 83707404576768. Its totient is φ = 65937160080000.

The previous prime is 74556091845071. The next prime is 74556091845083. The reversal of 74556091845079 is 97054819065547.

It is a cyclic number.

It is not a de Polignac number, because 74556091845079 - 2³ = 74556091845071 is a prime.

It is a super-2 number, since 2×74556091845079² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74556091844999 and 74556091845017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74556091845071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711883812 + ... + 711988534.

It is an arithmetic number, because the mean of its divisors is an integer number (2615856393024).

Almost surely, 2^{74556091845079} is an apocalyptic number.

74556091845079 is a deficient number, since it is larger than the sum of its proper divisors (9151312731689).

74556091845079 is a wasteful number, since it uses less digits than its factorization.

74556091845079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122359.

The product of its (nonzero) digits is 381024000, while the sum is 70.

The spelling of 74556091845079 in words is "seventy-four trillion, five hundred fifty-six billion, ninety-one million, eight hundred forty-five thousand, seventy-nine".