1796662681 has 16 divisors (see below), whose sum is σ = 2027346048. Its totient is φ = 1577980800.

The previous prime is 1796662657. The next prime is 1796662717. The reversal of 1796662681 is 1862666971.

1796662681 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 1796662681 - 2²³ = 1788274073 is a prime.

It is a super-2 number, since 2×1796662681² = 6455993578596215522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1796662981) 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, 27115 + ... + 65791.

It is an arithmetic number, because the mean of its divisors is an integer number (126709128).

Almost surely, 2^1796662681 is an apocalyptic number.

1796662681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1796662681 is a deficient number, since it is larger than the sum of its proper divisors (230683367).

1796662681 is a wasteful number, since it uses less digits than its factorization.

1796662681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38832.

The product of its digits is 1306368, while the sum is 52.

The square root of 1796662681 is about 42387.0579422540. The cubic root of 1796662681 is about 1215.6881470412.

The spelling of 1796662681 in words is "one billion, seven hundred ninety-six million, six hundred sixty-two thousand, six hundred eighty-one".