74042529993 has 6 divisors (see below), whose sum is σ = 106950321114. Its totient is φ = 49361686656.

The previous prime is 74042529961. The next prime is 74042530033. The reversal of 74042529993 is 39992524047.

74042529993 is a `hidden beast` number, since 7 + 40 + 425 + 2 + 99 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60303642624 + 13738887369 = 245568^2 + 117213^2 .

It is not a de Polignac number, because 74042529993 - 2⁵ = 74042529961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74042529193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4113473880 + ... + 4113473897.

It is an arithmetic number, because the mean of its divisors is an integer number (17825053519).

Almost surely, 2^74042529993 is an apocalyptic number.

It is an amenable number.

74042529993 is a deficient number, since it is larger than the sum of its proper divisors (32907791121).

74042529993 is a wasteful number, since it uses less digits than its factorization.

74042529993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226947783 (or 8226947780 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 74042529993 in words is "seventy-four billion, forty-two million, five hundred twenty-nine thousand, nine hundred ninety-three".