4013752639 has 4 divisors (see below), whose sum is σ = 4322502856. Its totient is φ = 3705002424.

The previous prime is 4013752619. The next prime is 4013752643. The reversal of 4013752639 is 9362573104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4013752639 is a prime.

It is a super-2 number, since 2×4013752639² = 32220420494158928642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013752619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154375089 + ... + 154375114.

It is an arithmetic number, because the mean of its divisors is an integer number (1080625714).

Almost surely, 2^4013752639 is an apocalyptic number.

4013752639 is a deficient number, since it is larger than the sum of its proper divisors (308750217).

4013752639 is a wasteful number, since it uses less digits than its factorization.

4013752639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308750216.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 4013752639 is about 63354.1840686154. The cubic root of 4013752639 is about 1589.2182171233.

The spelling of 4013752639 in words is "four billion, thirteen million, seven hundred fifty-two thousand, six hundred thirty-nine".