401232245605687 has 2 divisors, whose sum is σ = 401232245605688. Its totient is φ = 401232245605686.

The previous prime is 401232245605643. The next prime is 401232245605771. The reversal of 401232245605687 is 786506542232104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401232245605687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401232245605787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200616122802843 + 200616122802844.

It is an arithmetic number, because the mean of its divisors is an integer number (200616122802844).

Almost surely, 2^{401232245605687} is an apocalyptic number.

401232245605687 is a deficient number, since it is larger than the sum of its proper divisors (1).

401232245605687 is an equidigital number, since it uses as much as digits as its factorization.

401232245605687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 401232245605687 in words is "four hundred one trillion, two hundred thirty-two billion, two hundred forty-five million, six hundred five thousand, six hundred eighty-seven".