10921518707 has 4 divisors (see below), whose sum is σ = 11914384056. Its totient is φ = 9928653360.

The previous prime is 10921518691. The next prime is 10921518757. The reversal of 10921518707 is 70781512901.

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

It is a cyclic number.

It is not a de Polignac number, because 10921518707 - 2⁴ = 10921518691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10921518757) 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, 496432658 + ... + 496432679.

It is an arithmetic number, because the mean of its divisors is an integer number (2978596014).

Almost surely, 2^10921518707 is an apocalyptic number.

10921518707 is a deficient number, since it is larger than the sum of its proper divisors (992865349).

10921518707 is an equidigital number, since it uses as much as digits as its factorization.

10921518707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992865348.

The product of its (nonzero) digits is 35280, while the sum is 41.

The spelling of 10921518707 in words is "ten billion, nine hundred twenty-one million, five hundred eighteen thousand, seven hundred seven".