1415371813636 has 81 divisors (see below), whose sum is σ = 2893023382431. Its totient is φ = 605316307200.

The previous prime is 1415371813589. The next prime is 1415371813673. The reversal of 1415371813636 is 6363181735141.

The square root of 1415371813636 is 1189694.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 63398204100 + 1351973609536 = 251790^2 + 1162744^2 .

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 1415371813636.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 444943966 + ... + 444947146.

Almost surely, 2^{1415371813636} is an apocalyptic number.

1415371813636 is the 1189694-th square number.

It is an amenable number.

1415371813636 is an abundant number, since it is smaller than the sum of its proper divisors (1477651568795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1415371813636 is an equidigital number, since it uses as much as digits as its factorization.

1415371813636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422 (or 3211 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

Multiplying 1415371813636 by its sum of digits (49), we get a square (69353218868164 = 8327858²).

The spelling of 1415371813636 in words is "one trillion, four hundred fifteen billion, three hundred seventy-one million, eight hundred thirteen thousand, six hundred thirty-six".