11443997190 has 16 divisors (see below), whose sum is σ = 27465593328. Its totient is φ = 3051732576.

The previous prime is 11443997161. The next prime is 11443997209. The reversal of 11443997190 is 9179934411.

It is a super-2 number, since 2×11443997190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190733257 + ... + 190733316.

It is an arithmetic number, because the mean of its divisors is an integer number (1716599583).

Almost surely, 2^11443997190 is an apocalyptic number.

11443997190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11443997190 is an abundant number, since it is smaller than the sum of its proper divisors (16021596138).

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

11443997190 is a wasteful number, since it uses less digits than its factorization.

11443997190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381466583.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 11443997190 in words is "eleven billion, four hundred forty-three million, nine hundred ninety-seven thousand, one hundred ninety".