89967475840 has 256 divisors, whose sum is σ = 247858237440. Its totient is φ = 30920601600.

The previous prime is 89967475823. The next prime is 89967475859. The reversal of 89967475840 is 4857476998.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9379527 + ... + 9389113.

It is an arithmetic number, because the mean of its divisors is an integer number (968196240).

Almost surely, 2^89967475840 is an apocalyptic number.

89967475840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89967475840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123929118720).

89967475840 is an abundant number, since it is smaller than the sum of its proper divisors (157890761600).

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

89967475840 is a wasteful number, since it uses less digits than its factorization.

89967475840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691 (or 9679 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 67.

The spelling of 89967475840 in words is "eighty-nine billion, nine hundred sixty-seven million, four hundred seventy-five thousand, eight hundred forty".