1831653664997 has 16 divisors (see below), whose sum is σ = 2004532110000. Its totient is φ = 1663562514432.

The previous prime is 1831653664879. The next prime is 1831653665057. The reversal of 1831653664997 is 7994663561381.

It is a Cunningham number, because it is equal to 1353386²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 755732910241 + 1075920754756 = 869329^2 + 1037266^2 .

It is not a de Polignac number, because 1831653664997 - 2²⁴ = 1831636887781 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 (1831653604997) 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, 4349372 + ... + 4751877.

It is an arithmetic number, because the mean of its divisors is an integer number (125283256875).

Almost surely, 2^{1831653664997} is an apocalyptic number.

It is an amenable number.

1831653664997 is a deficient number, since it is larger than the sum of its proper divisors (172878445003).

1831653664997 is a wasteful number, since it uses less digits than its factorization.

1831653664997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101512.

The product of its digits is 176359680, while the sum is 68.

The spelling of 1831653664997 in words is "one trillion, eight hundred thirty-one billion, six hundred fifty-three million, six hundred sixty-four thousand, nine hundred ninety-seven".