74257682154338 has 4 divisors (see below), whose sum is σ = 111386523231510. Its totient is φ = 37128841077168.

The previous prime is 74257682154329. The next prime is 74257682154401. The reversal of 74257682154338 is 83345128675247.

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., 45340251189289 + 28917430965049 = 6733517^2 + 5377493^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18564420538583 + ... + 18564420538586.

Almost surely, 2^{74257682154338} is an apocalyptic number.

74257682154338 is a deficient number, since it is larger than the sum of its proper divisors (37128841077172).

74257682154338 is a wasteful number, since it uses less digits than its factorization.

74257682154338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37128841077171.

The product of its digits is 270950400, while the sum is 65.

The spelling of 74257682154338 in words is "seventy-four trillion, two hundred fifty-seven billion, six hundred eighty-two million, one hundred fifty-four thousand, three hundred thirty-eight".