3930089431691 has 4 divisors (see below), whose sum is σ = 3931613315400. Its totient is φ = 3928565547984.

The previous prime is 3930089431687. The next prime is 3930089431703. The reversal of 3930089431691 is 1961349800393.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3930089431691 - 2² = 3930089431687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3930089437691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761937986 + ... + 761943143.

It is an arithmetic number, because the mean of its divisors is an integer number (982903328850).

Almost surely, 2^{3930089431691} is an apocalyptic number.

3930089431691 is a deficient number, since it is larger than the sum of its proper divisors (1523883709).

3930089431691 is a wasteful number, since it uses less digits than its factorization.

3930089431691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523883708.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 3930089431691 in words is "three trillion, nine hundred thirty billion, eighty-nine million, four hundred thirty-one thousand, six hundred ninety-one".