402546404645205 has 16 divisors (see below), whose sum is σ = 656226591724800. Its totient is φ = 210640634379968.

The previous prime is 402546404645191. The next prime is 402546404645237. The reversal of 402546404645205 is 502546404645204.

It is a cyclic number.

It is not a de Polignac number, because 402546404645205 - 2⁵ = 402546404645173 is a prime.

It is a super-2 number, since 2×402546404645205² (a number of 30 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 15 ways as a sum of consecutive naturals, for example, 253173838605 + ... + 253173840194.

It is an arithmetic number, because the mean of its divisors is an integer number (41014161982800).

Almost surely, 2^{402546404645205} is an apocalyptic number.

It is an amenable number.

402546404645205 is a deficient number, since it is larger than the sum of its proper divisors (253680187079595).

402546404645205 is a wasteful number, since it uses less digits than its factorization.

402546404645205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506347678860.

The product of its (nonzero) digits is 18432000, while the sum is 51.

Subtracting 402546404645205 from its reverse (502546404645204), we obtain a palindrome (99999999999999).

The spelling of 402546404645205 in words is "four hundred two trillion, five hundred forty-six billion, four hundred four million, six hundred forty-five thousand, two hundred five".