11936763921 has 8 divisors (see below), whose sum is σ = 16464502080. Its totient is φ = 7683434192.

The previous prime is 11936763919. The next prime is 11936763973. The reversal of 11936763921 is 12936763911.

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 11936763921 - 2¹ = 11936763919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11936762921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68602005 + ... + 68602178.

It is an arithmetic number, because the mean of its divisors is an integer number (2058062760).

Almost surely, 2^11936763921 is an apocalyptic number.

It is an amenable number.

11936763921 is a deficient number, since it is larger than the sum of its proper divisors (4527738159).

11936763921 is a wasteful number, since it uses less digits than its factorization.

11936763921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137204215.

The product of its digits is 367416, while the sum is 48.

The spelling of 11936763921 in words is "eleven billion, nine hundred thirty-six million, seven hundred sixty-three thousand, nine hundred twenty-one".