1287829976242 has 8 divisors (see below), whose sum is σ = 1931759899776. Its totient is φ = 643910009652.

The previous prime is 1287829976207. The next prime is 1287829976263. The reversal of 1287829976242 is 2426799287821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157018 + ... + 2688565.

It is an arithmetic number, because the mean of its divisors is an integer number (241469987472).

Almost surely, 2^{1287829976242} is an apocalyptic number.

1287829976242 is a deficient number, since it is larger than the sum of its proper divisors (643929923534).

1287829976242 is a wasteful number, since it uses less digits than its factorization.

1287829976242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978472.

The product of its digits is 97542144, while the sum is 67.

The spelling of 1287829976242 in words is "one trillion, two hundred eighty-seven billion, eight hundred twenty-nine million, nine hundred seventy-six thousand, two hundred forty-two".