8031993655 has 16 divisors (see below), whose sum is σ = 11663265600. Its totient is φ = 5183672832.

The previous prime is 8031993631. The next prime is 8031993679. The reversal of 8031993655 is 5563991308.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8031993631) and next prime (8031993679).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8031993655 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8031993599 and 8031993608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6748980 + ... + 6750169.

It is an arithmetic number, because the mean of its divisors is an integer number (728954100).

Almost surely, 2^8031993655 is an apocalyptic number.

8031993655 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8031993655 is a deficient number, since it is larger than the sum of its proper divisors (3631271945).

8031993655 is a wasteful number, since it uses less digits than its factorization.

8031993655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499178.

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 8031993655 is about 89621.3906107242. The cubic root of 8031993655 is about 2002.6625916465.

The spelling of 8031993655 in words is "eight billion, thirty-one million, nine hundred ninety-three thousand, six hundred fifty-five".