4787311631 has 4 divisors (see below), whose sum is σ = 4787556672. Its totient is φ = 4787066592.

The previous prime is 4787311621. The next prime is 4787311663. The reversal of 4787311631 is 1361137874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1361137874 = 2 ⋅680568937.

It is a cyclic number.

It is not a de Polignac number, because 4787311631 - 2¹⁰ = 4787310607 is a prime.

It is a super-2 number, since 2×4787311631² = 45836705304615760322, 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 (4787311621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90410 + ... + 133223.

It is an arithmetic number, because the mean of its divisors is an integer number (1196889168).

Almost surely, 2^4787311631 is an apocalyptic number.

4787311631 is a deficient number, since it is larger than the sum of its proper divisors (245041).

4787311631 is a wasteful number, since it uses less digits than its factorization.

4787311631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245040.

The product of its digits is 84672, while the sum is 41.

The square root of 4787311631 is about 69190.4012923758. The cubic root of 4787311631 is about 1685.3776599796.

The spelling of 4787311631 in words is "four billion, seven hundred eighty-seven million, three hundred eleven thousand, six hundred thirty-one".