17777968023 has 8 divisors (see below), whose sum is σ = 23704884736. Its totient is φ = 11851515000.

The previous prime is 17777968007. The next prime is 17777968067. The reversal of 17777968023 is 32086977771.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 17777968023 - 2⁴ = 17777968007 is a prime.

It is a super-2 number, since 2×17777968023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17777968073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13543 + ... + 189048.

It is an arithmetic number, because the mean of its divisors is an integer number (2963110592).

Almost surely, 2^17777968023 is an apocalyptic number.

17777968023 is a deficient number, since it is larger than the sum of its proper divisors (5926916713).

17777968023 is a wasteful number, since it uses less digits than its factorization.

17777968023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231845.

The product of its (nonzero) digits is 6223392, while the sum is 57.

The spelling of 17777968023 in words is "seventeen billion, seven hundred seventy-seven million, nine hundred sixty-eight thousand, twenty-three".