5691423638 has 8 divisors (see below), whose sum is σ = 8552140920. Its totient is φ = 2840710000.

The previous prime is 5691423443. The next prime is 5691423667. The reversal of 5691423638 is 8363241965.

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

It is a junction number, because it is equal to n+sod(n) for n = 5691423592 and 5691423601.

It is a congruent number.

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, 2499488 + ... + 2501763.

It is an arithmetic number, because the mean of its divisors is an integer number (1069017615).

Almost surely, 2^5691423638 is an apocalyptic number.

5691423638 is a deficient number, since it is larger than the sum of its proper divisors (2860717282).

5691423638 is a wasteful number, since it uses less digits than its factorization.

5691423638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001822.

The product of its digits is 933120, while the sum is 47.

The square root of 5691423638 is about 75441.5246266935. The cubic root of 5691423638 is about 1785.4196261495.

The spelling of 5691423638 in words is "five billion, six hundred ninety-one million, four hundred twenty-three thousand, six hundred thirty-eight".