1299400175399 has 4 divisors (see below), whose sum is σ = 1302792865536. Its totient is φ = 1296007485264.

The previous prime is 1299400175393. The next prime is 1299400175413. The reversal of 1299400175399 is 9935710049921.

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

It is a cyclic number.

It is not a de Polignac number, because 1299400175399 - 2¹⁶ = 1299400109863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299400175393) 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, 1696344494 + ... + 1696345259.

It is an arithmetic number, because the mean of its divisors is an integer number (325698216384).

Almost surely, 2^{1299400175399} is an apocalyptic number.

1299400175399 is a deficient number, since it is larger than the sum of its proper divisors (3392690137).

1299400175399 is an equidigital number, since it uses as much as digits as its factorization.

1299400175399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392690136.

The product of its (nonzero) digits is 5511240, while the sum is 59.

The spelling of 1299400175399 in words is "one trillion, two hundred ninety-nine billion, four hundred million, one hundred seventy-five thousand, three hundred ninety-nine".