67821403019 has 12 divisors (see below), whose sum is σ = 72060669072. Its totient is φ = 63809130000.

The previous prime is 67821402959. The next prime is 67821403099. The reversal of 67821403019 is 91030412876.

It is not a de Polignac number, because 67821403019 - 2²⁰ = 67820354443 is a prime.

It is a super-2 number, since 2×67821403019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67821403099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1018607 + ... + 1083144.

It is an arithmetic number, because the mean of its divisors is an integer number (6005055756).

Almost surely, 2^67821403019 is an apocalyptic number.

67821403019 is a deficient number, since it is larger than the sum of its proper divisors (4239266053).

67821403019 is a wasteful number, since it uses less digits than its factorization.

67821403019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101858 (or 2101835 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 67821403019 in words is "sixty-seven billion, eight hundred twenty-one million, four hundred three thousand, nineteen".