1351264361646 has 16 divisors (see below), whose sum is σ = 2702620463184. Its totient is φ = 450406163904.

The previous prime is 1351264361639. The next prime is 1351264361647. The reversal of 1351264361646 is 6461634621531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1351264361595 and 1351264361604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351264361647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3630271 + ... + 3985146.

It is an arithmetic number, because the mean of its divisors is an integer number (168913778949).

Almost surely, 2^{1351264361646} is an apocalyptic number.

1351264361646 is an abundant number, since it is smaller than the sum of its proper divisors (1351356101538).

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

1351264361646 is a wasteful number, since it uses less digits than its factorization.

1351264361646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644995.

The product of its digits is 1866240, while the sum is 48.

The spelling of 1351264361646 in words is "one trillion, three hundred fifty-one billion, two hundred sixty-four million, three hundred sixty-one thousand, six hundred forty-six".