80954931633 has 4 divisors (see below), whose sum is σ = 107939908848. Its totient is φ = 53969954420.

The previous prime is 80954931611. The next prime is 80954931637. The reversal of 80954931633 is 33613945908.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80954931633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80954931637) 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, 13492488603 + ... + 13492488608.

It is an arithmetic number, because the mean of its divisors is an integer number (26984977212).

Almost surely, 2^80954931633 is an apocalyptic number.

It is an amenable number.

80954931633 is a deficient number, since it is larger than the sum of its proper divisors (26984977215).

80954931633 is a wasteful number, since it uses less digits than its factorization.

80954931633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26984977214.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 80954931633 in words is "eighty billion, nine hundred fifty-four million, nine hundred thirty-one thousand, six hundred thirty-three".