74384494642 has 8 divisors (see below), whose sum is σ = 111577906332. Its totient is φ = 37191859200.

The previous prime is 74384494633. The next prime is 74384494661. The reversal of 74384494642 is 24649448347.

It can be written as a sum of positive squares in 2 ways, for example, as 74370198681 + 14295961 = 272709^2 + 3781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237042 + ... + 452722.

Almost surely, 2^74384494642 is an apocalyptic number.

74384494642 is a deficient number, since it is larger than the sum of its proper divisors (37193411690).

74384494642 is a wasteful number, since it uses less digits than its factorization.

74384494642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388124.

The product of its digits is 18579456, while the sum is 55.

The spelling of 74384494642 in words is "seventy-four billion, three hundred eighty-four million, four hundred ninety-four thousand, six hundred forty-two".