89849857040 has 20 divisors (see below), whose sum is σ = 208900917804. Its totient is φ = 35939942784.

The previous prime is 89849856997. The next prime is 89849857043. The reversal of 89849857040 is 4075894898.

It can be written as a sum of positive squares in 2 ways, for example, as 55010887936 + 34838969104 = 234544^2 + 186652^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (89849857043) 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, 561561527 + ... + 561561686.

Almost surely, 2^89849857040 is an apocalyptic number.

89849857040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89849857040 is an abundant number, since it is smaller than the sum of its proper divisors (119051060764).

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

89849857040 is a wasteful number, since it uses less digits than its factorization.

89849857040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123123226 (or 1123123220 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 89849857040 in words is "eighty-nine billion, eight hundred forty-nine million, eight hundred fifty-seven thousand, forty".