89772986261 has 8 divisors (see below), whose sum is σ = 102599510784. Its totient is φ = 76946914800.

The previous prime is 89772986257. The next prime is 89772986267. The reversal of 89772986261 is 16268927798.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89772986261 - 2² = 89772986257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89772986267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722036 + ... + 837186.

It is an arithmetic number, because the mean of its divisors is an integer number (12824938848).

Almost surely, 2^89772986261 is an apocalyptic number.

It is an amenable number.

89772986261 is a deficient number, since it is larger than the sum of its proper divisors (12826524523).

89772986261 is a wasteful number, since it uses less digits than its factorization.

89772986261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226531.

The product of its digits is 36578304, while the sum is 65.

The spelling of 89772986261 in words is "eighty-nine billion, seven hundred seventy-two million, nine hundred eighty-six thousand, two hundred sixty-one".