11763723947621 has 4 divisors (see below), whose sum is σ = 11829443076000. Its totient is φ = 11698004819244.

The previous prime is 11763723947617. The next prime is 11763723947623. The reversal of 11763723947621 is 12674932736711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11763723947621 - 2² = 11763723947617 is a prime.

It is a super-2 number, since 2×11763723947621² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11763723947623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32859563921 + ... + 32859564278.

It is an arithmetic number, because the mean of its divisors is an integer number (2957360769000).

Almost surely, 2^{11763723947621} is an apocalyptic number.

It is an amenable number.

11763723947621 is a deficient number, since it is larger than the sum of its proper divisors (65719128379).

11763723947621 is an equidigital number, since it uses as much as digits as its factorization.

11763723947621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65719128378.

The product of its digits is 16003008, while the sum is 59.

The spelling of 11763723947621 in words is "eleven trillion, seven hundred sixty-three billion, seven hundred twenty-three million, nine hundred forty-seven thousand, six hundred twenty-one".