74640677378 has 8 divisors (see below), whose sum is σ = 112066344768. Its totient is φ = 37285229124.

The previous prime is 74640677329. The next prime is 74640677383. The reversal of 74640677378 is 87377604647.

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, 17552126 + ... + 17556377.

It is an arithmetic number, because the mean of its divisors is an integer number (14008293096).

Almost surely, 2^74640677378 is an apocalyptic number.

74640677378 is a deficient number, since it is larger than the sum of its proper divisors (37425667390).

74640677378 is a wasteful number, since it uses less digits than its factorization.

74640677378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35109568.

The product of its (nonzero) digits is 33191424, while the sum is 59.

The spelling of 74640677378 in words is "seventy-four billion, six hundred forty million, six hundred seventy-seven thousand, three hundred seventy-eight".