4748921809631 has 4 divisors (see below), whose sum is σ = 5028270151392. Its totient is φ = 4469573467872.

The previous prime is 4748921809613. The next prime is 4748921809637. The reversal of 4748921809631 is 1369081298474.

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

It is a cyclic number.

It is not a de Polignac number, because 4748921809631 - 2¹⁰ = 4748921808607 is a prime.

It is a super-2 number, since 2×4748921809631² (a number of 26 digits) 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 (4748921809637) 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, 139674170855 + ... + 139674170888.

It is an arithmetic number, because the mean of its divisors is an integer number (1257067537848).

Almost surely, 2^{4748921809631} is an apocalyptic number.

4748921809631 is a deficient number, since it is larger than the sum of its proper divisors (279348341761).

4748921809631 is a wasteful number, since it uses less digits than its factorization.

4748921809631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279348341760.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 4748921809631 in words is "four trillion, seven hundred forty-eight billion, nine hundred twenty-one million, eight hundred nine thousand, six hundred thirty-one".