11954732413 has 4 divisors (see below), whose sum is σ = 12874327228. Its totient is φ = 11035137600.

The previous prime is 11954732371. The next prime is 11954732441. The reversal of 11954732413 is 31423745911.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4371457689 + 7583274724 = 66117^2 + 87082^2 .

It is a cyclic number.

It is not a de Polignac number, because 11954732413 - 2¹⁷ = 11954601341 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 (11954732453) 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, 459797388 + ... + 459797413.

It is an arithmetic number, because the mean of its divisors is an integer number (3218581807).

Almost surely, 2^11954732413 is an apocalyptic number.

11954732413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11954732413 is a deficient number, since it is larger than the sum of its proper divisors (919594815).

11954732413 is an equidigital number, since it uses as much as digits as its factorization.

11954732413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919594814.

The product of its digits is 90720, while the sum is 40.

The spelling of 11954732413 in words is "eleven billion, nine hundred fifty-four million, seven hundred thirty-two thousand, four hundred thirteen".