89999999994 has 32 divisors (see below), whose sum is σ = 190629480960. Its totient is φ = 28267355952.

The previous prime is 89999999993. The next prime is 90000000019. The reversal of 89999999994 is 49999999998.

It is a junction number, because it is equal to n+sod(n) for n = 89999999898 and 89999999907.

It is not an unprimeable number, because it can be changed into a prime (89999999993) 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, 4857724 + ... + 4876215.

It is an arithmetic number, because the mean of its divisors is an integer number (5957171280).

Almost surely, 2^89999999994 is an apocalyptic number.

89999999994 is an abundant number, since it is smaller than the sum of its proper divisors (100629480966).

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

89999999994 is a wasteful number, since it uses less digits than its factorization.

89999999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734034.

The product of its digits is 12397455648, while the sum is 93.

The spelling of 89999999994 in words is "eighty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".