1296798920187 has 8 divisors (see below), whose sum is σ = 1729100632080. Its totient is φ = 864514910880.

The previous prime is 1296798920177. The next prime is 1296798920257. The reversal of 1296798920187 is 7810298976921.

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

It is not a de Polignac number, because 1296798920187 - 2¹¹ = 1296798918139 is a prime.

It is a super-2 number, since 2×1296798920187² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1296798920107) 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, 4253764 + ... + 4548417.

It is an arithmetic number, because the mean of its divisors is an integer number (216137579010).

Almost surely, 2^{1296798920187} is an apocalyptic number.

1296798920187 is a deficient number, since it is larger than the sum of its proper divisors (432301711893).

1296798920187 is an equidigital number, since it uses as much as digits as its factorization.

1296798920187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851293.

The product of its (nonzero) digits is 54867456, while the sum is 69.

The spelling of 1296798920187 in words is "one trillion, two hundred ninety-six billion, seven hundred ninety-eight million, nine hundred twenty thousand, one hundred eighty-seven".