18375158741 has 4 divisors (see below), whose sum is σ = 18408148812. Its totient is φ = 18342168672.

The previous prime is 18375158729. The next prime is 18375158779. The reversal of 18375158741 is 14785157381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14785157381 = 163 ⋅90706487.

It can be written as a sum of positive squares in 2 ways, for example, as 2586231025 + 15788927716 = 50855^2 + 125654^2 .

It is a cyclic number.

It is not a de Polignac number, because 18375158741 - 2³⁰ = 17301416917 is a prime.

It is a super-4 number, since 4×18375158741⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18375158741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375158941) 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, 16494200 + ... + 16495313.

It is an arithmetic number, because the mean of its divisors is an integer number (4602037203).

Almost surely, 2^18375158741 is an apocalyptic number.

It is an amenable number.

18375158741 is a deficient number, since it is larger than the sum of its proper divisors (32990071).

18375158741 is an equidigital number, since it uses as much as digits as its factorization.

18375158741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32990070.

The product of its digits is 940800, while the sum is 50.

The spelling of 18375158741 in words is "eighteen billion, three hundred seventy-five million, one hundred fifty-eight thousand, seven hundred forty-one".