89845426887 has 16 divisors (see below), whose sum is σ = 130932237312. Its totient is φ = 54555096960.

The previous prime is 89845426883. The next prime is 89845426933. The reversal of 89845426887 is 78862454898.

It is not a de Polignac number, because 89845426887 - 2² = 89845426883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89845426883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28412533 + ... + 28415694.

It is an arithmetic number, because the mean of its divisors is an integer number (8183264832).

Almost surely, 2^89845426887 is an apocalyptic number.

89845426887 is a deficient number, since it is larger than the sum of its proper divisors (41086810425).

89845426887 is a wasteful number, since it uses less digits than its factorization.

89845426887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56828278.

The product of its digits is 247726080, while the sum is 69.

The spelling of 89845426887 in words is "eighty-nine billion, eight hundred forty-five million, four hundred twenty-six thousand, eight hundred eighty-seven".