4945943631 has 4 divisors (see below), whose sum is σ = 6594591512. Its totient is φ = 3297295752.

The previous prime is 4945943593. The next prime is 4945943633. The reversal of 4945943631 is 1363495494.

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

It is not a de Polignac number, because 4945943631 - 2¹³ = 4945935439 is a prime.

It is a super-2 number, since 2×4945943631² = 48924716802058928322, 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 (4945943633) 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, 824323936 + ... + 824323941.

It is an arithmetic number, because the mean of its divisors is an integer number (1648647878).

Almost surely, 2^4945943631 is an apocalyptic number.

4945943631 is a deficient number, since it is larger than the sum of its proper divisors (1648647881).

4945943631 is a wasteful number, since it uses less digits than its factorization.

4945943631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648647880.

The product of its digits is 1399680, while the sum is 48.

The square root of 4945943631 is about 70327.4031299322. The cubic root of 4945943631 is about 1703.7912653600.

The spelling of 4945943631 in words is "four billion, nine hundred forty-five million, nine hundred forty-three thousand, six hundred thirty-one".