11461905399 has 64 divisors (see below), whose sum is σ = 18765195264. Its totient is φ = 6080126976.

The previous prime is 11461905341. The next prime is 11461905407. The reversal of 11461905399 is 99350916411.

It is not a de Polignac number, because 11461905399 - 2¹⁹ = 11461381111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11461905319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12026707 + ... + 12027659.

It is an arithmetic number, because the mean of its divisors is an integer number (293206176).

Almost surely, 2^11461905399 is an apocalyptic number.

11461905399 is a deficient number, since it is larger than the sum of its proper divisors (7303289865).

11461905399 is a wasteful number, since it uses less digits than its factorization.

11461905399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 11461905399 in words is "eleven billion, four hundred sixty-one million, nine hundred five thousand, three hundred ninety-nine".