17882497961 has 4 divisors (see below), whose sum is σ = 17882970000. Its totient is φ = 17882025924.

The previous prime is 17882497951. The next prime is 17882497973. The reversal of 17882497961 is 16979428871.

It is a happy number.

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 17882497961 - 2¹⁰ = 17882496937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17882497894 and 17882497903.

It is not an unprimeable number, because it can be changed into a prime (17882497951) 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, 173711 + ... + 256788.

It is an arithmetic number, because the mean of its divisors is an integer number (4470742500).

Almost surely, 2^17882497961 is an apocalyptic number.

It is an amenable number.

17882497961 is a deficient number, since it is larger than the sum of its proper divisors (472039).

17882497961 is an equidigital number, since it uses as much as digits as its factorization.

17882497961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472038.

The product of its digits is 12192768, while the sum is 62.

The spelling of 17882497961 in words is "seventeen billion, eight hundred eighty-two million, four hundred ninety-seven thousand, nine hundred sixty-one".