1613402411812 has 6 divisors (see below), whose sum is σ = 2823454220678. Its totient is φ = 806701205904.

The previous prime is 1613402411779. The next prime is 1613402411813. The reversal of 1613402411812 is 2181142043161.

It can be written as a sum of positive squares in only one way, i.e., 980270287396 + 633132124416 = 990086^2 + 795696^2 .

It is not an unprimeable number, because it can be changed into a prime (1613402411813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201675301473 + ... + 201675301480.

Almost surely, 2^{1613402411812} is an apocalyptic number.

It is an amenable number.

1613402411812 is a deficient number, since it is larger than the sum of its proper divisors (1210051808866).

1613402411812 is a wasteful number, since it uses less digits than its factorization.

1613402411812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403350602957 (or 403350602955 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

Adding to 1613402411812 its reverse (2181142043161), we get a palindrome (3794544454973).

The spelling of 1613402411812 in words is "one trillion, six hundred thirteen billion, four hundred two million, four hundred eleven thousand, eight hundred twelve".