80419190505 has 32 divisors (see below), whose sum is σ = 130528723968. Its totient is φ = 42271320000.

The previous prime is 80419190497. The next prime is 80419190507. The reversal of 80419190505 is 50509191408.

It is not a de Polignac number, because 80419190505 - 2³ = 80419190497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80419190507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3450702 + ... + 3473928.

It is an arithmetic number, because the mean of its divisors is an integer number (4079022624).

Almost surely, 2^80419190505 is an apocalyptic number.

It is an amenable number.

80419190505 is a deficient number, since it is larger than the sum of its proper divisors (50109533463).

80419190505 is a wasteful number, since it uses less digits than its factorization.

80419190505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26557.

The product of its (nonzero) digits is 64800, while the sum is 42.

The spelling of 80419190505 in words is "eighty billion, four hundred nineteen million, one hundred ninety thousand, five hundred five".