18732352801 has 2 divisors, whose sum is σ = 18732352802. Its totient is φ = 18732352800.

The previous prime is 18732352763. The next prime is 18732352823. The reversal of 18732352801 is 10825323781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18265792801 + 466560000 = 135151^2 + 21600^2 .

It is an emirp because it is prime and its reverse (10825323781) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18732352801 is a prime.

It is a super-2 number, since 2×18732352801² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18732352901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9366176400 + 9366176401.

It is an arithmetic number, because the mean of its divisors is an integer number (9366176401).

Almost surely, 2^18732352801 is an apocalyptic number.

It is an amenable number.

18732352801 is a deficient number, since it is larger than the sum of its proper divisors (1).

18732352801 is an equidigital number, since it uses as much as digits as its factorization.

18732352801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18732352801 in words is "eighteen billion, seven hundred thirty-two million, three hundred fifty-two thousand, eight hundred one".