10918812493 has 2 divisors, whose sum is σ = 10918812494. Its totient is φ = 10918812492.

The previous prime is 10918812451. The next prime is 10918812497. The reversal of 10918812493 is 39421881901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9261752644 + 1657059849 = 96238^2 + 40707^2 .

It is a cyclic number.

It is not a de Polignac number, because 10918812493 - 2¹³ = 10918804301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10918812497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5459406246 + 5459406247.

It is an arithmetic number, because the mean of its divisors is an integer number (5459406247).

Almost surely, 2^10918812493 is an apocalyptic number.

It is an amenable number.

10918812493 is a deficient number, since it is larger than the sum of its proper divisors (1).

10918812493 is an equidigital number, since it uses as much as digits as its factorization.

10918812493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 10918812493 in words is "ten billion, nine hundred eighteen million, eight hundred twelve thousand, four hundred ninety-three".