2142758616397 has 4 divisors (see below), whose sum is σ = 2448866990176. Its totient is φ = 1836650242620.

The previous prime is 2142758616389. The next prime is 2142758616457. The reversal of 2142758616397 is 7936168572412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142758616397 - 2³ = 2142758616389 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 (2142758616307) 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, 153054186879 + ... + 153054186892.

It is an arithmetic number, because the mean of its divisors is an integer number (612216747544).

Almost surely, 2^{2142758616397} is an apocalyptic number.

It is an amenable number.

2142758616397 is a deficient number, since it is larger than the sum of its proper divisors (306108373779).

2142758616397 is an equidigital number, since it uses as much as digits as its factorization.

2142758616397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306108373778.

The product of its digits is 30481920, while the sum is 61.

The spelling of 2142758616397 in words is "two trillion, one hundred forty-two billion, seven hundred fifty-eight million, six hundred sixteen thousand, three hundred ninety-seven".