89491635740 has 24 divisors (see below), whose sum is σ = 202388776800. Its totient is φ = 33043065408.

The previous prime is 89491635719. The next prime is 89491635763. The reversal of 89491635740 is 4753619498.

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, 172099040 + ... + 172099559.

It is an arithmetic number, because the mean of its divisors is an integer number (8432865700).

Almost surely, 2^89491635740 is an apocalyptic number.

It is an amenable number.

89491635740 is an abundant number, since it is smaller than the sum of its proper divisors (112897141060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89491635740 is a wasteful number, since it uses less digits than its factorization.

89491635740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344198621 (or 344198619 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 89491635740 in words is "eighty-nine billion, four hundred ninety-one million, six hundred thirty-five thousand, seven hundred forty".