768721127867 has 20 divisors (see below), whose sum is σ = 978314165976. Its totient is φ = 599003455680.

The previous prime is 768721127831. The next prime is 768721127873.

768721127867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 768721127867 - 2⁸ = 768721127611 is a prime.

It is a super-2 number, since 2×768721127867² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (768721124867) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14526638 + ... + 14579459.

Almost surely, 2^768721127867 is an apocalyptic number.

768721127867 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

768721127867 is a deficient number, since it is larger than the sum of its proper divisors (209593038109).

768721127867 is an equidigital number, since it uses as much as digits as its factorization.

768721127867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29106136 (or 29106115 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 62.

The spelling of 768721127867 in words is "seven hundred sixty-eight billion, seven hundred twenty-one million, one hundred twenty-seven thousand, eight hundred sixty-seven".