74027185138 has 4 divisors (see below), whose sum is σ = 111040777710. Its totient is φ = 37013592568.

The previous prime is 74027185123. The next prime is 74027185147. The reversal of 74027185138 is 83158172047.

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., 65513985849 + 8513199289 = 255957^2 + 92267^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18506796283 + ... + 18506796286.

Almost surely, 2^74027185138 is an apocalyptic number.

74027185138 is a deficient number, since it is larger than the sum of its proper divisors (37013592572).

74027185138 is a wasteful number, since it uses less digits than its factorization.

74027185138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37013592571.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 74027185138 in words is "seventy-four billion, twenty-seven million, one hundred eighty-five thousand, one hundred thirty-eight".