74087979691 has 8 divisors (see below), whose sum is σ = 80977794624. Its totient is φ = 67223922120.

The previous prime is 74087979689. The next prime is 74087979703. The reversal of 74087979691 is 19697978047.

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

It is a cyclic number.

It is not a de Polignac number, because 74087979691 - 2¹ = 74087979689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74087959691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6433321 + ... + 6444826.

It is an arithmetic number, because the mean of its divisors is an integer number (10122224328).

Almost surely, 2^74087979691 is an apocalyptic number.

74087979691 is a deficient number, since it is larger than the sum of its proper divisors (6889814933).

74087979691 is a wasteful number, since it uses less digits than its factorization.

74087979691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878681.

The product of its (nonzero) digits is 48009024, while the sum is 67.

The spelling of 74087979691 in words is "seventy-four billion, eighty-seven million, nine hundred seventy-nine thousand, six hundred ninety-one".