18748241031 has 16 divisors (see below), whose sum is σ = 27322354304. Its totient is φ = 11365177824.

The previous prime is 18748241003. The next prime is 18748241047. The reversal of 18748241031 is 13014284781.

It is not a de Polignac number, because 18748241031 - 2⁶ = 18748240967 is a prime.

It is a super-2 number, since 2×18748241031² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18748246031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3584881 + ... + 3590106.

It is an arithmetic number, because the mean of its divisors is an integer number (1707647144).

Almost surely, 2^18748241031 is an apocalyptic number.

18748241031 is a deficient number, since it is larger than the sum of its proper divisors (8574113273).

18748241031 is a wasteful number, since it uses less digits than its factorization.

18748241031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175070.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 18748241031 in words is "eighteen billion, seven hundred forty-eight million, two hundred forty-one thousand, thirty-one".