11811394570 has 32 divisors (see below), whose sum is σ = 21640452480. Its totient is φ = 4640623680.

The previous prime is 11811394541. The next prime is 11811394571. The reversal of 11811394570 is 7549311811.

It is not an unprimeable number, because it can be changed into a prime (11811394571) 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, 160069 + ... + 221911.

It is an arithmetic number, because the mean of its divisors is an integer number (676264140).

Almost surely, 2^11811394570 is an apocalyptic number.

11811394570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11811394570 is a deficient number, since it is larger than the sum of its proper divisors (9829057910).

11811394570 is a wasteful number, since it uses less digits than its factorization.

11811394570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62190.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 11811394570 in words is "eleven billion, eight hundred eleven million, three hundred ninety-four thousand, five hundred seventy".