80181963 has 12 divisors (see below), whose sum is σ = 115918920. Its totient is φ = 53408256.

The previous prime is 80181961. The next prime is 80181967. The reversal of 80181963 is 36918108.

It is not a de Polignac number, because 80181963 - 2¹ = 80181961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80181961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9520 + ... + 15842.

It is an arithmetic number, because the mean of its divisors is an integer number (9659910).

Almost surely, 2^80181963 is an apocalyptic number.

80181963 is a deficient number, since it is larger than the sum of its proper divisors (35736957).

80181963 is a wasteful number, since it uses less digits than its factorization.

80181963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738 (or 7735 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 80181963 is about 8954.4381733306. The cubic root of 80181963 is about 431.2133801293.

The spelling of 80181963 in words is "eighty million, one hundred eighty-one thousand, nine hundred sixty-three".