10487115785 has 4 divisors (see below), whose sum is σ = 12584538948. Its totient is φ = 8389692624.

The previous prime is 10487115763. The next prime is 10487115799. The reversal of 10487115785 is 58751178401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58751178401 = 571 ⋅102891731.

It can be written as a sum of positive squares in 2 ways, for example, as 4531443856 + 5955671929 = 67316^2 + 77173^2 .

It is a cyclic number.

It is not a de Polignac number, because 10487115785 - 2¹⁰ = 10487114761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048711574 + ... + 1048711583.

It is an arithmetic number, because the mean of its divisors is an integer number (3146134737).

Almost surely, 2^10487115785 is an apocalyptic number.

It is an amenable number.

10487115785 is a deficient number, since it is larger than the sum of its proper divisors (2097423163).

10487115785 is an equidigital number, since it uses as much as digits as its factorization.

10487115785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097423162.

The product of its (nonzero) digits is 313600, while the sum is 47.

The spelling of 10487115785 in words is "ten billion, four hundred eighty-seven million, one hundred fifteen thousand, seven hundred eighty-five".