10856722591919 has 2 divisors, whose sum is σ = 10856722591920. Its totient is φ = 10856722591918.

The previous prime is 10856722591879. The next prime is 10856722592021. The reversal of 10856722591919 is 91919522765801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10856722591919 is a prime.

It is a super-2 number, since 2×10856722591919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10856722590919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428361295959 + 5428361295960.

It is an arithmetic number, because the mean of its divisors is an integer number (5428361295960).

Almost surely, 2^{10856722591919} is an apocalyptic number.

10856722591919 is a deficient number, since it is larger than the sum of its proper divisors (1).

10856722591919 is an equidigital number, since it uses as much as digits as its factorization.

10856722591919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 65.

The spelling of 10856722591919 in words is "ten trillion, eight hundred fifty-six billion, seven hundred twenty-two million, five hundred ninety-one thousand, nine hundred nineteen".