22736321401 has 4 divisors (see below), whose sum is σ = 23350816612. Its totient is φ = 22121826192.

The previous prime is 22736321383. The next prime is 22736321437. The reversal of 22736321401 is 10412363722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16880245776 + 5856075625 = 129924^2 + 76525^2 .

It is a cyclic number.

It is not a de Polignac number, because 22736321401 - 2¹³ = 22736313209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22736321471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307247550 + ... + 307247623.

It is an arithmetic number, because the mean of its divisors is an integer number (5837704153).

Almost surely, 2^22736321401 is an apocalyptic number.

It is an amenable number.

22736321401 is a deficient number, since it is larger than the sum of its proper divisors (614495211).

22736321401 is an equidigital number, since it uses as much as digits as its factorization.

22736321401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614495210.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 22736321401 in words is "twenty-two billion, seven hundred thirty-six million, three hundred twenty-one thousand, four hundred one".