89778896450730 has 64 divisors (see below), whose sum is σ = 239546497766400. Its totient is φ = 23927428330560.

The previous prime is 89778896450647. The next prime is 89778896450743. The reversal of 89778896450730 is 3705469887798.

89778896450730 is a `hidden beast` number, since 8 + 9 + 7 + 7 + 8 + 8 + 96 + 450 + 73 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 89778896450730.

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, 94043101 + ... + 94992960.

It is an arithmetic number, because the mean of its divisors is an integer number (3742914027600).

Almost surely, 2^{89778896450730} is an apocalyptic number.

89778896450730 is an abundant number, since it is smaller than the sum of its proper divisors (149767601315670).

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

89778896450730 is a wasteful number, since it uses less digits than its factorization.

89778896450730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189037836 (or 189037830 counting only the distinct ones).

The product of its (nonzero) digits is 5120962560, while the sum is 81.

The spelling of 89778896450730 in words is "eighty-nine trillion, seven hundred seventy-eight billion, eight hundred ninety-six million, four hundred fifty thousand, seven hundred thirty".