11057905399 has 4 divisors (see below), whose sum is σ = 11639900440. Its totient is φ = 10475910360.

The previous prime is 11057905393. The next prime is 11057905403. The reversal of 11057905399 is 99350975011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99350975011 = 479 ⋅207413309.

It is a cyclic number.

It is not a de Polignac number, because 11057905399 - 2⁹ = 11057904887 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 (11057905393) 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, 290997492 + ... + 290997529.

It is an arithmetic number, because the mean of its divisors is an integer number (2909975110).

Almost surely, 2^11057905399 is an apocalyptic number.

11057905399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11057905399 is a deficient number, since it is larger than the sum of its proper divisors (581995041).

11057905399 is an equidigital number, since it uses as much as digits as its factorization.

11057905399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581995040.

The product of its (nonzero) digits is 382725, while the sum is 49.

The spelling of 11057905399 in words is "eleven billion, fifty-seven million, nine hundred five thousand, three hundred ninety-nine".