2561239008033 has 8 divisors (see below), whose sum is σ = 3420059619168. Its totient is φ = 1704955534464.

The previous prime is 2561239007993. The next prime is 2561239008037. The reversal of 2561239008033 is 3308009321652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2561239008033 - 2⁹ = 2561239007521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2561239008037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634282035 + ... + 634286072.

It is an arithmetic number, because the mean of its divisors is an integer number (427507452396).

Almost surely, 2^{2561239008033} is an apocalyptic number.

It is an amenable number.

2561239008033 is a deficient number, since it is larger than the sum of its proper divisors (858820611135).

2561239008033 is a wasteful number, since it uses less digits than its factorization.

2561239008033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268568783.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 2561239008033 in words is "two trillion, five hundred sixty-one billion, two hundred thirty-nine million, eight thousand, thirty-three".