5921692391 has 4 divisors (see below), whose sum is σ = 5927327784. Its totient is φ = 5916057000.

The previous prime is 5921692379. The next prime is 5921692393. The reversal of 5921692391 is 1932961295.

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 5921692391 - 2⁶ = 5921692327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5921692393) 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, 2816120 + ... + 2818221.

It is an arithmetic number, because the mean of its divisors is an integer number (1481831946).

Almost surely, 2^5921692391 is an apocalyptic number.

5921692391 is a deficient number, since it is larger than the sum of its proper divisors (5635393).

5921692391 is a wasteful number, since it uses less digits than its factorization.

5921692391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635392.

The product of its digits is 262440, while the sum is 47.

The square root of 5921692391 is about 76952.5333631064. The cubic root of 5921692391 is about 1809.1807074179.

The spelling of 5921692391 in words is "five billion, nine hundred twenty-one million, six hundred ninety-two thousand, three hundred ninety-one".