402268678605 has 48 divisors (see below), whose sum is σ = 721400359680. Its totient is φ = 207119117184.

The previous prime is 402268678583. The next prime is 402268678639. The reversal of 402268678605 is 506876862204.

402268678605 is a `hidden beast` number, since 4 + 0 + 2 + 26 + 8 + 6 + 7 + 8 + 605 = 666.

It is not a de Polignac number, because 402268678605 - 2⁶ = 402268678541 is a prime.

It is a super-2 number, since 2×402268678605² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14454634 + ... + 14482436.

It is an arithmetic number, because the mean of its divisors is an integer number (15029174160).

Almost surely, 2^402268678605 is an apocalyptic number.

402268678605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402268678605 is a deficient number, since it is larger than the sum of its proper divisors (319131681075).

402268678605 is a wasteful number, since it uses less digits than its factorization.

402268678605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38930 (or 38927 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 402268678605 in words is "four hundred two billion, two hundred sixty-eight million, six hundred seventy-eight thousand, six hundred five".