10487920493 has 2 divisors, whose sum is σ = 10487920494. Its totient is φ = 10487920492.

The previous prime is 10487920463. The next prime is 10487920567. The reversal of 10487920493 is 39402978401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9917570569 + 570349924 = 99587^2 + 23882^2 .

It is a cyclic number.

It is not a de Polignac number, because 10487920493 - 2⁸ = 10487920237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10487920463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5243960246 + 5243960247.

It is an arithmetic number, because the mean of its divisors is an integer number (5243960247).

Almost surely, 2^10487920493 is an apocalyptic number.

It is an amenable number.

10487920493 is a deficient number, since it is larger than the sum of its proper divisors (1).

10487920493 is an equidigital number, since it uses as much as digits as its factorization.

10487920493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 10487920493 in words is "ten billion, four hundred eighty-seven million, nine hundred twenty thousand, four hundred ninety-three".