89782439813 has 16 divisors (see below), whose sum is σ = 103719341376. Its totient is φ = 76809258240.

The previous prime is 89782439809. The next prime is 89782439821. The reversal of 89782439813 is 31893428798.

It is not a de Polignac number, because 89782439813 - 2² = 89782439809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89782433813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664495 + ... + 1717587.

It is an arithmetic number, because the mean of its divisors is an integer number (6482458836).

Almost surely, 2^89782439813 is an apocalyptic number.

It is an amenable number.

89782439813 is a deficient number, since it is larger than the sum of its proper divisors (13936901563).

89782439813 is a wasteful number, since it uses less digits than its factorization.

89782439813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62164.

The product of its digits is 20901888, while the sum is 62.

The spelling of 89782439813 in words is "eighty-nine billion, seven hundred eighty-two million, four hundred thirty-nine thousand, eight hundred thirteen".