402534687841 has 16 divisors (see below), whose sum is σ = 493469101440. Its totient is φ = 323104763520.

The previous prime is 402534687839. The next prime is 402534687847. The reversal of 402534687841 is 148786435204.

It is not a de Polignac number, because 402534687841 - 2¹ = 402534687839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402534687847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61190796 + ... + 61197373.

It is an arithmetic number, because the mean of its divisors is an integer number (30841818840).

Almost surely, 2^402534687841 is an apocalyptic number.

It is an amenable number.

402534687841 is a deficient number, since it is larger than the sum of its proper divisors (90934413599).

402534687841 is a wasteful number, since it uses less digits than its factorization.

402534687841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122388216.

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 402534687841 in words is "four hundred two billion, five hundred thirty-four million, six hundred eighty-seven thousand, eight hundred forty-one".