80983499775 has 48 divisors (see below), whose sum is σ = 138564226560. Its totient is φ = 41685436800.

The previous prime is 80983499749. The next prime is 80983499809. The reversal of 80983499775 is 57799438908.

It is a Cunningham number, because it is equal to 284576²-1.

It is not a de Polignac number, because 80983499775 - 2⁶ = 80983499711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7108734 + ... + 7120116.

It is an arithmetic number, because the mean of its divisors is an integer number (2886754720).

Almost surely, 2^80983499775 is an apocalyptic number.

80983499775 is a deficient number, since it is larger than the sum of its proper divisors (57580726785).

80983499775 is a wasteful number, since it uses less digits than its factorization.

80983499775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14696 (or 14691 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 69.

The spelling of 80983499775 in words is "eighty billion, nine hundred eighty-three million, four hundred ninety-nine thousand, seven hundred seventy-five".