89083780491 has 24 divisors (see below), whose sum is σ = 124334134960. Its totient is φ = 56693609856.

The previous prime is 89083780483. The next prime is 89083780493. The reversal of 89083780491 is 19408738098.

It is not a de Polignac number, because 89083780491 - 2³ = 89083780483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89083780493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168945 + ... + 454653.

Almost surely, 2^89083780491 is an apocalyptic number.

89083780491 is a deficient number, since it is larger than the sum of its proper divisors (35250354469).

89083780491 is a wasteful number, since it uses less digits than its factorization.

89083780491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285855 (or 285802 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 89083780491 in words is "eighty-nine billion, eighty-three million, seven hundred eighty thousand, four hundred ninety-one".