74905771227 has 16 divisors (see below), whose sum is σ = 114177799680. Its totient is φ = 42789920832.

The previous prime is 74905771223. The next prime is 74905771277. The reversal of 74905771227 is 72217750947.

It is not a de Polignac number, because 74905771227 - 2² = 74905771223 is a prime.

It is a super-2 number, since 2×74905771227² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74905771227.

It is not an unprimeable number, because it can be changed into a prime (74905771223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488383 + ... + 623160.

It is an arithmetic number, because the mean of its divisors is an integer number (7136112480).

Almost surely, 2^74905771227 is an apocalyptic number.

74905771227 is a deficient number, since it is larger than the sum of its proper divisors (39272028453).

74905771227 is a wasteful number, since it uses less digits than its factorization.

74905771227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114762.

The product of its (nonzero) digits is 1728720, while the sum is 51.

The spelling of 74905771227 in words is "seventy-four billion, nine hundred five million, seven hundred seventy-one thousand, two hundred twenty-seven".