1996091976281 has 16 divisors (see below), whose sum is σ = 2219252904960. Its totient is φ = 1782890688960.

The previous prime is 1996091976251. The next prime is 1996091976299. The reversal of 1996091976281 is 1826791906991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1996091976281 is a prime.

It is a super-2 number, since 2×1996091976281² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1996091976211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3030275 + ... + 3629703.

It is an arithmetic number, because the mean of its divisors is an integer number (138703306560).

Almost surely, 2^{1996091976281} is an apocalyptic number.

It is an amenable number.

1996091976281 is a deficient number, since it is larger than the sum of its proper divisors (223160928679).

1996091976281 is a wasteful number, since it uses less digits than its factorization.

1996091976281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607736.

The product of its (nonzero) digits is 26453952, while the sum is 68.

The spelling of 1996091976281 in words is "one trillion, nine hundred ninety-six billion, ninety-one million, nine hundred seventy-six thousand, two hundred eighty-one".