89152909821 has 32 divisors (see below), whose sum is σ = 140705781120. Its totient is φ = 55595849472.

The previous prime is 89152909819. The next prime is 89152909831. The reversal of 89152909821 is 12890925198.

89152909821 is a `hidden beast` number, since 8 + 9 + 1 + 529 + 0 + 98 + 21 = 666.

It is not a de Polignac number, because 89152909821 - 2¹ = 89152909819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89152909831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520990 + ... + 670623.

It is an arithmetic number, because the mean of its divisors is an integer number (4397055660).

Almost surely, 2^89152909821 is an apocalyptic number.

It is an amenable number.

89152909821 is a deficient number, since it is larger than the sum of its proper divisors (51552871299).

89152909821 is a wasteful number, since it uses less digits than its factorization.

89152909821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191802 (or 1191796 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 89152909821 in words is "eighty-nine billion, one hundred fifty-two million, nine hundred nine thousand, eight hundred twenty-one".