2641543085402 has 48 divisors (see below), whose sum is σ = 4309389005400. Its totient is φ = 1213828551936.

The previous prime is 2641543085393. The next prime is 2641543085449. The reversal of 2641543085402 is 2045803451462.

2641543085402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 574213857361 + 2067329228041 = 757769^2 + 1437821^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128538224 + ... + 128558772.

Almost surely, 2^{2641543085402} is an apocalyptic number.

2641543085402 is a deficient number, since it is larger than the sum of its proper divisors (1667845919998).

2641543085402 is a wasteful number, since it uses less digits than its factorization.

2641543085402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22227 (or 22214 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 2641543085402 in words is "two trillion, six hundred forty-one billion, five hundred forty-three million, eighty-five thousand, four hundred two".