1299417013643 has 4 divisors (see below), whose sum is σ = 1485048015600. Its totient is φ = 1113786011688.

The previous prime is 1299417013627. The next prime is 1299417013669. The reversal of 1299417013643 is 3463107149921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1299417013643 - 2⁴ = 1299417013627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1299417013591 and 1299417013600.

It is not an unprimeable number, because it can be changed into a prime (1299417013043) 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, 92815500968 + ... + 92815500981.

It is an arithmetic number, because the mean of its divisors is an integer number (371262003900).

Almost surely, 2^{1299417013643} is an apocalyptic number.

1299417013643 is a deficient number, since it is larger than the sum of its proper divisors (185631001957).

1299417013643 is an equidigital number, since it uses as much as digits as its factorization.

1299417013643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185631001956.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 1299417013643 in words is "one trillion, two hundred ninety-nine billion, four hundred seventeen million, thirteen thousand, six hundred forty-three".