1008764645 has 16 divisors (see below), whose sum is σ = 1428077568. Its totient is φ = 669409920.

The previous prime is 1008764639. The next prime is 1008764651. The reversal of 1008764645 is 5464678001.

It is an interprime number because it is at equal distance from previous prime (1008764639) and next prime (1008764651).

It is not a de Polignac number, because 1008764645 - 2⁴ = 1008764629 is a prime.

It is a super-2 number, since 2×1008764645² = 2035212218003952050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463784 + ... + 465953.

It is an arithmetic number, because the mean of its divisors is an integer number (89254848).

Almost surely, 2^1008764645 is an apocalyptic number.

It is an amenable number.

1008764645 is a deficient number, since it is larger than the sum of its proper divisors (419312923).

1008764645 is an equidigital number, since it uses as much as digits as its factorization.

1008764645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929780.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1008764645 is about 31761.0554767942. The cubic root of 1008764645 is about 1002.9130542086.

The spelling of 1008764645 in words is "one billion, eight million, seven hundred sixty-four thousand, six hundred forty-five".