80440001692 has 24 divisors (see below), whose sum is σ = 141330420000. Its totient is φ = 40060194816.

The previous prime is 80440001647. The next prime is 80440001729. The reversal of 80440001692 is 29610004408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002684 + ... + 1079932.

It is an arithmetic number, because the mean of its divisors is an integer number (5888767500).

Almost surely, 2^80440001692 is an apocalyptic number.

It is an amenable number.

80440001692 is a deficient number, since it is larger than the sum of its proper divisors (60890418308).

80440001692 is a wasteful number, since it uses less digits than its factorization.

80440001692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78285 (or 78283 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 80440001692 in words is "eighty billion, four hundred forty million, one thousand, six hundred ninety-two".