89745472164 has 12 divisors (see below), whose sum is σ = 209406101744. Its totient is φ = 29915157384.

The previous prime is 89745472163. The next prime is 89745472171. The reversal of 89745472164 is 46127454798.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (89745472163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739394662 + ... + 3739394685.

Almost surely, 2^89745472164 is an apocalyptic number.

It is an amenable number.

89745472164 is an abundant number, since it is smaller than the sum of its proper divisors (119660629580).

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

89745472164 is a wasteful number, since it uses less digits than its factorization.

89745472164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7478789354 (or 7478789352 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 89745472164 in words is "eighty-nine billion, seven hundred forty-five million, four hundred seventy-two thousand, one hundred sixty-four".