402168861204 has 24 divisors (see below), whose sum is σ = 1023702556128. Its totient is φ = 121869351840.

The previous prime is 402168861179. The next prime is 402168861209.

402168861204 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402168861209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523366767 + ... + 1523367030.

It is an arithmetic number, because the mean of its divisors is an integer number (42654273172).

Almost surely, 2^402168861204 is an apocalyptic number.

402168861204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402168861204 is an abundant number, since it is smaller than the sum of its proper divisors (621533694924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402168861204 is a wasteful number, since it uses less digits than its factorization.

402168861204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046733815 (or 3046733813 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 402168861204 in words is "four hundred two billion, one hundred sixty-eight million, eight hundred sixty-one thousand, two hundred four".