1299423454842 has 16 divisors (see below), whose sum is σ = 2598891379200. Its totient is φ = 433133740032.

The previous prime is 1299423454837. The next prime is 1299423454843. The reversal of 1299423454842 is 2484543249921.

It is not an unprimeable number, because it can be changed into a prime (1299423454843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466842 + ... + 2179557.

It is an arithmetic number, because the mean of its divisors is an integer number (162430711200).

Almost surely, 2^{1299423454842} is an apocalyptic number.

1299423454842 is an abundant number, since it is smaller than the sum of its proper divisors (1299467924358).

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

1299423454842 is a wasteful number, since it uses less digits than its factorization.

1299423454842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705797.

The product of its digits is 19906560, while the sum is 57.

The spelling of 1299423454842 in words is "one trillion, two hundred ninety-nine billion, four hundred twenty-three million, four hundred fifty-four thousand, eight hundred forty-two".