899426727888 has 80 divisors (see below), whose sum is σ = 2502412960320. Its totient is φ = 276728804352.

The previous prime is 899426727869. The next prime is 899426727923. The reversal of 899426727888 is 888727624998.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12195508 + ... + 12269036.

It is an arithmetic number, because the mean of its divisors is an integer number (31280162004).

Almost surely, 2^899426727888 is an apocalyptic number.

It is an amenable number.

899426727888 is an abundant number, since it is smaller than the sum of its proper divisors (1602986232432).

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

899426727888 is a wasteful number, since it uses less digits than its factorization.

899426727888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93156 (or 93150 counting only the distinct ones).

The product of its digits is 1560674304, while the sum is 78.

The spelling of 899426727888 in words is "eight hundred ninety-nine billion, four hundred twenty-six million, seven hundred twenty-seven thousand, eight hundred eighty-eight".