11899472859 has 8 divisors (see below), whose sum is σ = 17628848720. Its totient is φ = 7932981888.

The previous prime is 11899472857. The next prime is 11899472873. The reversal of 11899472859 is 95827499811.

11899472859 is a `hidden beast` number, since 1 + 1 + 89 + 9 + 472 + 85 + 9 = 666.

It is not a de Polignac number, because 11899472859 - 2¹ = 11899472857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11899472796 and 11899472805.

It is not an unprimeable number, because it can be changed into a prime (11899472857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220360582 + ... + 220360635.

It is an arithmetic number, because the mean of its divisors is an integer number (2203606090).

Almost surely, 2^11899472859 is an apocalyptic number.

11899472859 is a deficient number, since it is larger than the sum of its proper divisors (5729375861).

11899472859 is an equidigital number, since it uses as much as digits as its factorization.

11899472859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440721226 (or 440721220 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The spelling of 11899472859 in words is "eleven billion, eight hundred ninety-nine million, four hundred seventy-two thousand, eight hundred fifty-nine".