89866818495 has 40 divisors (see below), whose sum is σ = 161404174800. Its totient is φ = 47836863360.

The previous prime is 89866818491. The next prime is 89866818541. The reversal of 89866818495 is 59481866898.

It is not a de Polignac number, because 89866818495 - 2² = 89866818491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89866818491) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1945 + ... + 423954.

It is an arithmetic number, because the mean of its divisors is an integer number (4035104370).

Almost surely, 2^89866818495 is an apocalyptic number.

89866818495 is a deficient number, since it is larger than the sum of its proper divisors (71537356305).

89866818495 is a wasteful number, since it uses less digits than its factorization.

89866818495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426437 (or 426428 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 72.

The spelling of 89866818495 in words is "eighty-nine billion, eight hundred sixty-six million, eight hundred eighteen thousand, four hundred ninety-five".