1499113636961 has 4 divisors (see below), whose sum is σ = 1515957610500. Its totient is φ = 1482269663424.

The previous prime is 1499113636913. The next prime is 1499113637027. The reversal of 1499113636961 is 1696363119941.

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 987352246336 + 511761390625 = 993656^2 + 715375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1499113636961 is a prime.

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 1499113636961.

It is not an unprimeable number, because it can be changed into a prime (1499113636861) 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, 8421986636 + ... + 8421986813.

It is an arithmetic number, because the mean of its divisors is an integer number (378989402625).

Almost surely, 2^{1499113636961} is an apocalyptic number.

It is an amenable number.

1499113636961 is a deficient number, since it is larger than the sum of its proper divisors (16843973539).

1499113636961 is an equidigital number, since it uses as much as digits as its factorization.

1499113636961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843973538.

The product of its digits is 5668704, while the sum is 59.

The spelling of 1499113636961 in words is "one trillion, four hundred ninety-nine billion, one hundred thirteen million, six hundred thirty-six thousand, nine hundred sixty-one".