10648487891999 has 2 divisors, whose sum is σ = 10648487892000. Its totient is φ = 10648487891998.

The previous prime is 10648487891981. The next prime is 10648487892101. The reversal of 10648487891999 is 99919878484601.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10648487891999 - 2¹⁶ = 10648487826463 is a prime.

It is a super-2 number, since 2×10648487891999² (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 (10648487891929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5324243945999 + 5324243946000.

It is an arithmetic number, because the mean of its divisors is an integer number (5324243946000).

Almost surely, 2^{10648487891999} is an apocalyptic number.

10648487891999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10648487891999 is an equidigital number, since it uses as much as digits as its factorization.

10648487891999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257403904, while the sum is 83.

The spelling of 10648487891999 in words is "ten trillion, six hundred forty-eight billion, four hundred eighty-seven million, eight hundred ninety-one thousand, nine hundred ninety-nine".