11401390279 has 4 divisors (see below), whose sum is σ = 11426015776. Its totient is φ = 11376764784.

The previous prime is 11401390261. The next prime is 11401390333. The reversal of 11401390279 is 97209310411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11401390279 - 2¹¹ = 11401388231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401390219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12312054 + ... + 12312979.

It is an arithmetic number, because the mean of its divisors is an integer number (2856503944).

Almost surely, 2^11401390279 is an apocalyptic number.

11401390279 is a deficient number, since it is larger than the sum of its proper divisors (24625497).

11401390279 is an equidigital number, since it uses as much as digits as its factorization.

11401390279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24625496.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 11401390279 in words is "eleven billion, four hundred one million, three hundred ninety thousand, two hundred seventy-nine".