11764510421 has 8 divisors (see below), whose sum is σ = 12553336320. Its totient is φ = 10992648672.

The previous prime is 11764510409. The next prime is 11764510423. The reversal of 11764510421 is 12401546711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11764510421 - 2¹⁸ = 11764248277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11764510423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4239605 + ... + 4242378.

It is an arithmetic number, because the mean of its divisors is an integer number (1569167040).

Almost surely, 2^11764510421 is an apocalyptic number.

It is an amenable number.

11764510421 is a deficient number, since it is larger than the sum of its proper divisors (788825899).

11764510421 is an equidigital number, since it uses as much as digits as its factorization.

11764510421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8482075.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 11764510421 in words is "eleven billion, seven hundred sixty-four million, five hundred ten thousand, four hundred twenty-one".