31748238711 has 48 divisors (see below), whose sum is σ = 54735905280. Its totient is φ = 18134429040.

The previous prime is 31748238671. The next prime is 31748238721. The reversal of 31748238711 is 11783284713.

It is not a de Polignac number, because 31748238711 - 2⁶ = 31748238647 is a prime.

It is a super-2 number, since 2×31748238711² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31748238721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6071280 + ... + 6076506.

It is an arithmetic number, because the mean of its divisors is an integer number (1140331360).

Almost surely, 2^31748238711 is an apocalyptic number.

31748238711 is a deficient number, since it is larger than the sum of its proper divisors (22987666569).

31748238711 is a wasteful number, since it uses less digits than its factorization.

31748238711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841 (or 9828 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The spelling of 31748238711 in words is "thirty-one billion, seven hundred forty-eight million, two hundred thirty-eight thousand, seven hundred eleven".