11379213978 has 16 divisors (see below), whose sum is σ = 24827376096. Its totient is φ = 3448246640.

The previous prime is 11379213977. The next prime is 11379213991. The reversal of 11379213978 is 87931297311.

It is a super-2 number, since 2×11379213978² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11379213978.

It is not an unprimeable number, because it can be changed into a prime (11379213973) 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 7 ways as a sum of consecutive naturals, for example, 86206101 + ... + 86206232.

It is an arithmetic number, because the mean of its divisors is an integer number (1551711006).

Almost surely, 2^11379213978 is an apocalyptic number.

11379213978 is an abundant number, since it is smaller than the sum of its proper divisors (13448162118).

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

11379213978 is a wasteful number, since it uses less digits than its factorization.

11379213978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172412349.

The product of its digits is 571536, while the sum is 51.

The spelling of 11379213978 in words is "eleven billion, three hundred seventy-nine million, two hundred thirteen thousand, nine hundred seventy-eight".