1513320760891 has 2 divisors, whose sum is σ = 1513320760892. Its totient is φ = 1513320760890.

The previous prime is 1513320760871. The next prime is 1513320760927. The reversal of 1513320760891 is 1980670233151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1513320760891 - 2¹⁵ = 1513320728123 is a prime.

It is a super-2 number, since 2×1513320760891² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1513320760871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756660380445 + 756660380446.

It is an arithmetic number, because the mean of its divisors is an integer number (756660380446).

Almost surely, 2^{1513320760891} is an apocalyptic number.

1513320760891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513320760891 is an equidigital number, since it uses as much as digits as its factorization.

1513320760891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 1513320760891 in words is "one trillion, five hundred thirteen billion, three hundred twenty million, seven hundred sixty thousand, eight hundred ninety-one".