402797868343 has 16 divisors (see below), whose sum is σ = 449639820000. Its totient is φ = 358272673920.

The previous prime is 402797868337. The next prime is 402797868353. The reversal of 402797868343 is 343868797204.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 402797868343 - 2⁹ = 402797867831 is a prime.

It is a super-2 number, since 2×402797868343² (a number of 24 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 (402797868353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882448 + ... + 1258693.

It is an arithmetic number, because the mean of its divisors is an integer number (28102488750).

Almost surely, 2^402797868343 is an apocalyptic number.

402797868343 is a deficient number, since it is larger than the sum of its proper divisors (46841951657).

402797868343 is a wasteful number, since it uses less digits than its factorization.

402797868343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141682.

The product of its (nonzero) digits is 48771072, while the sum is 61.

The spelling of 402797868343 in words is "four hundred two billion, seven hundred ninety-seven million, eight hundred sixty-eight thousand, three hundred forty-three".