2640485075 has 24 divisors (see below), whose sum is σ = 3404209200. Its totient is φ = 2030054400.

The previous prime is 2640485063. The next prime is 2640485087. The reversal of 2640485075 is 5705840462.

It is an interprime number because it is at equal distance from previous prime (2640485063) and next prime (2640485087).

It is a de Polignac number, because none of the positive numbers 2^k-2640485075 is a prime.

It is a super-4 number, since 4×2640485075⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 49451 + ... + 87899.

It is an arithmetic number, because the mean of its divisors is an integer number (141842050).

Almost surely, 2^2640485075 is an apocalyptic number.

2640485075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2640485075 is a deficient number, since it is larger than the sum of its proper divisors (763724125).

2640485075 is a wasteful number, since it uses less digits than its factorization.

2640485075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38567 (or 38562 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2640485075 is about 51385.6504775409. The cubic root of 2640485075 is about 1382.1692891403.

The spelling of 2640485075 in words is "two billion, six hundred forty million, four hundred eighty-five thousand, seventy-five".