89540902215 has 96 divisors (see below), whose sum is σ = 171636506496. Its totient is φ = 42952335360.

The previous prime is 89540902201. The next prime is 89540902247. The reversal of 89540902215 is 51220904598.

It is a happy number.

89540902215 is a `hidden beast` number, since 8 + 9 + 540 + 90 + 2 + 2 + 15 = 666.

It is not a de Polignac number, because 89540902215 - 2⁶ = 89540902151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30279517 + ... + 30282473.

It is an arithmetic number, because the mean of its divisors is an integer number (1787880276).

Almost surely, 2^89540902215 is an apocalyptic number.

89540902215 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89540902215 is a deficient number, since it is larger than the sum of its proper divisors (82095604281).

89540902215 is a wasteful number, since it uses less digits than its factorization.

89540902215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 89540902215 in words is "eighty-nine billion, five hundred forty million, nine hundred two thousand, two hundred fifteen".