7581103423 has 4 divisors (see below), whose sum is σ = 7588754368. Its totient is φ = 7573452480.

The previous prime is 7581103391. The next prime is 7581103447. The reversal of 7581103423 is 3243011857.

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 7581103423 - 2⁵ = 7581103391 is a prime.

It is a super-2 number, since 2×7581103423² (a number of 21 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 (7581109423) 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, 3823986 + ... + 3825967.

It is an arithmetic number, because the mean of its divisors is an integer number (1897188592).

Almost surely, 2^7581103423 is an apocalyptic number.

7581103423 is a deficient number, since it is larger than the sum of its proper divisors (7650945).

7581103423 is an equidigital number, since it uses as much as digits as its factorization.

7581103423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650944.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 7581103423 is about 87069.5321165791. The cubic root of 7581103423 is about 1964.4642983707.

The spelling of 7581103423 in words is "seven billion, five hundred eighty-one million, one hundred three thousand, four hundred twenty-three".