11895705870 has 32 divisors (see below), whose sum is σ = 28826883072. Its totient is φ = 3141389472.

The previous prime is 11895705853. The next prime is 11895705901. The reversal of 11895705870 is 7850759811.

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, 1921782 + ... + 1927961.

It is an arithmetic number, because the mean of its divisors is an integer number (900840096).

Almost surely, 2^11895705870 is an apocalyptic number.

11895705870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11895705870 is an abundant number, since it is smaller than the sum of its proper divisors (16931177202).

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

11895705870 is a wasteful number, since it uses less digits than its factorization.

11895705870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849856.

The product of its (nonzero) digits is 705600, while the sum is 51.

The spelling of 11895705870 in words is "eleven billion, eight hundred ninety-five million, seven hundred five thousand, eight hundred seventy".