1996102691 has 16 divisors (see below), whose sum is σ = 2219443200. Its totient is φ = 1779880800.

The previous prime is 1996102663. The next prime is 1996102723. The reversal of 1996102691 is 1962016991.

It is a cyclic number.

It is not a de Polignac number, because 1996102691 - 2¹⁴ = 1996086307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1996102601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307661 + ... + 314081.

It is an arithmetic number, because the mean of its divisors is an integer number (138715200).

Almost surely, 2^1996102691 is an apocalyptic number.

1996102691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1996102691 is a deficient number, since it is larger than the sum of its proper divisors (223340509).

1996102691 is a wasteful number, since it uses less digits than its factorization.

1996102691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 1996102691 is about 44677.7650627244. The cubic root of 1996102691 is about 1259.1021341285.

The spelling of 1996102691 in words is "one billion, nine hundred ninety-six million, one hundred two thousand, six hundred ninety-one".