36612446251361 has 4 divisors (see below), whose sum is σ = 36613235682324. Its totient is φ = 36611656820400.

The previous prime is 36612446251349. The next prime is 36612446251387. The reversal of 36612446251361 is 16315264421663.

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 24666678501136 + 11945767750225 = 4966556^2 + 3456265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36612446251361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36612446251321) 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, 394645910 + ... + 394738671.

It is an arithmetic number, because the mean of its divisors is an integer number (9153308920581).

Almost surely, 2^{36612446251361} is an apocalyptic number.

It is an amenable number.

36612446251361 is a deficient number, since it is larger than the sum of its proper divisors (789430963).

36612446251361 is an equidigital number, since it uses as much as digits as its factorization.

36612446251361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789430962.

The product of its digits is 3732480, while the sum is 50.

The spelling of 36612446251361 in words is "thirty-six trillion, six hundred twelve billion, four hundred forty-six million, two hundred fifty-one thousand, three hundred sixty-one".