74174901993 has 12 divisors (see below), whose sum is σ = 113443967988. Its totient is φ = 46541114880.

The previous prime is 74174901979. The next prime is 74174902013. The reversal of 74174901993 is 39910947147.

It can be written as a sum of positive squares in 2 ways, for example, as 54701257689 + 19473644304 = 233883^2 + 139548^2 .

It is not a de Polignac number, because 74174901993 - 2⁵ = 74174901961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74174900993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242401488 + ... + 242401793.

It is an arithmetic number, because the mean of its divisors is an integer number (9453663999).

Almost surely, 2^74174901993 is an apocalyptic number.

It is an amenable number.

74174901993 is a deficient number, since it is larger than the sum of its proper divisors (39269065995).

74174901993 is a wasteful number, since it uses less digits than its factorization.

74174901993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484803304 (or 484803301 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 74174901993 in words is "seventy-four billion, one hundred seventy-four million, nine hundred one thousand, nine hundred ninety-three".