74545075634 has 4 divisors (see below), whose sum is σ = 111817613454. Its totient is φ = 37272537816.

The previous prime is 74545075523. The next prime is 74545075663. The reversal of 74545075634 is 43657054547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50317219225 + 24227856409 = 224315^2 + 155653^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18636268907 + ... + 18636268910.

Almost surely, 2^74545075634 is an apocalyptic number.

74545075634 is a deficient number, since it is larger than the sum of its proper divisors (37272537820).

74545075634 is a wasteful number, since it uses less digits than its factorization.

74545075634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37272537819.

The product of its (nonzero) digits is 7056000, while the sum is 50.

The spelling of 74545075634 in words is "seventy-four billion, five hundred forty-five million, seventy-five thousand, six hundred thirty-four".