4013687481 has 4 divisors (see below), whose sum is σ = 5351583312. Its totient is φ = 2675791652.

The previous prime is 4013687479. The next prime is 4013687501. The reversal of 4013687481 is 1847863104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4013687481 - 2¹ = 4013687479 is a prime.

It is a super-2 number, since 2×4013687481² = 32219374390272250722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4013687401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 668947911 + ... + 668947916.

It is an arithmetic number, because the mean of its divisors is an integer number (1337895828).

Almost surely, 2^4013687481 is an apocalyptic number.

It is an amenable number.

4013687481 is a deficient number, since it is larger than the sum of its proper divisors (1337895831).

4013687481 is a wasteful number, since it uses less digits than its factorization.

4013687481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337895830.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 4013687481 is about 63353.6698305631. The cubic root of 4013687481 is about 1589.2096174535.

The spelling of 4013687481 in words is "four billion, thirteen million, six hundred eighty-seven thousand, four hundred eighty-one".