899898809714091 has 72 divisors (see below), whose sum is σ = 1431225557379072. Its totient is φ = 544454085146400.

The previous prime is 899898809714089. The next prime is 899898809714123. The reversal of 899898809714091 is 190417908898998.

It is not a de Polignac number, because 899898809714091 - 2¹ = 899898809714089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 899898809713992 and 899898809714010.

It is not an unprimeable number, because it can be changed into a prime (899898809714291) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10501629556 + ... + 10501715246.

It is an arithmetic number, because the mean of its divisors is an integer number (19878132741376).

Almost surely, 2^{899898809714091} is an apocalyptic number.

899898809714091 is a deficient number, since it is larger than the sum of its proper divisors (531326747664981).

899898809714091 is a wasteful number, since it uses less digits than its factorization.

899898809714091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102213 (or 102199 counting only the distinct ones).

The product of its (nonzero) digits is 6772211712, while the sum is 90.

The spelling of 899898809714091 in words is "eight hundred ninety-nine trillion, eight hundred ninety-eight billion, eight hundred nine million, seven hundred fourteen thousand, ninety-one".