10645453987 has 16 divisors (see below), whose sum is σ = 12678681600. Its totient is φ = 8930519304.

The previous prime is 10645453981. The next prime is 10645454011. The reversal of 10645453987 is 78935454601.

10645453987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-10645453987 is a prime.

It is a super-2 number, since 2×10645453987² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10645453981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314053 + ... + 346294.

It is an arithmetic number, because the mean of its divisors is an integer number (792417600).

Almost surely, 2^10645453987 is an apocalyptic number.

10645453987 is a deficient number, since it is larger than the sum of its proper divisors (2033227613).

10645453987 is an frugal number, since it uses more digits than its factorization.

10645453987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660415 (or 660401 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 10645453987 in words is "ten billion, six hundred forty-five million, four hundred fifty-three thousand, nine hundred eighty-seven".