1996262978113 has 4 divisors (see below), whose sum is σ = 1996436713648. Its totient is φ = 1996089242580.

The previous prime is 1996262978111. The next prime is 1996262978147. The reversal of 1996262978113 is 3118792626991.

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 1996262978113 - 2¹ = 1996262978111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1996262978111) 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, 86850531 + ... + 86873512.

It is an arithmetic number, because the mean of its divisors is an integer number (499109178412).

Almost surely, 2^{1996262978113} is an apocalyptic number.

It is an amenable number.

1996262978113 is a deficient number, since it is larger than the sum of its proper divisors (173735535).

1996262978113 is a wasteful number, since it uses less digits than its factorization.

1996262978113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173735534.

The product of its digits is 17635968, while the sum is 64.

The spelling of 1996262978113 in words is "one trillion, nine hundred ninety-six billion, two hundred sixty-two million, nine hundred seventy-eight thousand, one hundred thirteen".