11381700879 has 8 divisors (see below), whose sum is σ = 16861779120. Its totient is φ = 7587800568.

The previous prime is 11381700851. The next prime is 11381700893. The reversal of 11381700879 is 97800718311.

It is a happy number.

It is not a de Polignac number, because 11381700879 - 2⁷ = 11381700751 is a prime.

It is a super-2 number, since 2×11381700879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381700829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210772212 + ... + 210772265.

It is an arithmetic number, because the mean of its divisors is an integer number (2107722390).

Almost surely, 2^11381700879 is an apocalyptic number.

11381700879 is a deficient number, since it is larger than the sum of its proper divisors (5480078241).

11381700879 is an equidigital number, since it uses as much as digits as its factorization.

11381700879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421544486 (or 421544480 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 45.

The spelling of 11381700879 in words is "eleven billion, three hundred eighty-one million, seven hundred thousand, eight hundred seventy-nine".