6253940745 has 40 divisors (see below), whose sum is σ = 12073144776. Its totient is φ = 3078860544.

The previous prime is 6253940717. The next prime is 6253940789. The reversal of 6253940745 is 5470493526.

6253940745 is a `hidden beast` number, since 6 + 2 + 539 + 40 + 74 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15468489 + 6238472256 = 3933^2 + 78984^2 .

It is not a de Polignac number, because 6253940745 - 2²¹ = 6251843593 is a prime.

It is a super-2 number, since 2×6253940745² = 78223549683942310050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6253940745.

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 39 ways as a sum of consecutive naturals, for example, 588652 + ... + 599181.

Almost surely, 2^6253940745 is an apocalyptic number.

6253940745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6253940745 is a deficient number, since it is larger than the sum of its proper divisors (5819204031).

6253940745 is a wasteful number, since it uses less digits than its factorization.

6253940745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187863 (or 1187854 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 6253940745 is about 79081.8610365234. The cubic root of 6253940745 is about 1842.4028100807.

The spelling of 6253940745 in words is "six billion, two hundred fifty-three million, nine hundred forty thousand, seven hundred forty-five".