89779071222 has 32 divisors (see below), whose sum is σ = 200521807200. Its totient is φ = 29774443104.

The previous prime is 89779071199. The next prime is 89779071251. The reversal of 89779071222 is 22217097798.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4209097 + ... + 4230372.

It is an arithmetic number, because the mean of its divisors is an integer number (6266306475).

Almost surely, 2^89779071222 is an apocalyptic number.

89779071222 is an abundant number, since it is smaller than the sum of its proper divisors (110742735978).

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

89779071222 is a wasteful number, since it uses less digits than its factorization.

89779071222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8439677 (or 8439671 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 89779071222 in words is "eighty-nine billion, seven hundred seventy-nine million, seventy-one thousand, two hundred twenty-two".