11914596421 has 24 divisors (see below), whose sum is σ = 15803991000. Its totient is φ = 8872399872.

The previous prime is 11914596383. The next prime is 11914596487. The reversal of 11914596421 is 12469541911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1943575396 + 9971021025 = 44086^2 + 99855^2 .

It is not a de Polignac number, because 11914596421 - 2⁹ = 11914595909 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11914596121) 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 23 ways as a sum of consecutive naturals, for example, 539296 + ... + 560953.

It is an arithmetic number, because the mean of its divisors is an integer number (658499625).

Almost surely, 2^11914596421 is an apocalyptic number.

It is an amenable number.

11914596421 is a deficient number, since it is larger than the sum of its proper divisors (3889394579).

11914596421 is a wasteful number, since it uses less digits than its factorization.

11914596421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100293 (or 1100286 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The spelling of 11914596421 in words is "eleven billion, nine hundred fourteen million, five hundred ninety-six thousand, four hundred twenty-one".