11930861770 has 8 divisors (see below), whose sum is σ = 21475551204. Its totient is φ = 4772344704.

The previous prime is 11930861693. The next prime is 11930861771. The reversal of 11930861770 is 7716803911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11178621441 + 752240329 = 105729^2 + 27427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11930861771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596543079 + ... + 596543098.

Almost surely, 2^11930861770 is an apocalyptic number.

11930861770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11930861770 is a deficient number, since it is larger than the sum of its proper divisors (9544689434).

11930861770 is a wasteful number, since it uses less digits than its factorization.

11930861770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193086184.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 11930861770 in words is "eleven billion, nine hundred thirty million, eight hundred sixty-one thousand, seven hundred seventy".