4890870645 has 32 divisors (see below), whose sum is σ = 7937740800. Its totient is φ = 2571127104.

The previous prime is 4890870601. The next prime is 4890870653. The reversal of 4890870645 is 5460780984.

It is not a de Polignac number, because 4890870645 - 2²¹ = 4888773493 is a prime.

It is a super-2 number, since 2×4890870645² = 47841231332245432050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 777784 + ... + 784046.

It is an arithmetic number, because the mean of its divisors is an integer number (248054400).

Almost surely, 2^4890870645 is an apocalyptic number.

It is an amenable number.

4890870645 is a deficient number, since it is larger than the sum of its proper divisors (3046870155).

4890870645 is a wasteful number, since it uses less digits than its factorization.

4890870645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 4890870645 is about 69934.7599195136. The cubic root of 4890870645 is about 1697.4437527409.

The spelling of 4890870645 in words is "four billion, eight hundred ninety million, eight hundred seventy thousand, six hundred forty-five".