2561462641652 has 24 divisors (see below), whose sum is σ = 4649051370600. Its totient is φ = 1233389311616.

The previous prime is 2561462641603. The next prime is 2561462641741.

2561462641652 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 499119642256 + 2062342999396 = 706484^2 + 1436086^2 .

It is a super-2 number, since 2×2561462641652² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2561462641652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28337363 + ... + 28427610.

It is an arithmetic number, because the mean of its divisors is an integer number (193710473775).

Almost surely, 2^{2561462641652} is an apocalyptic number.

It is an amenable number.

2561462641652 is a deficient number, since it is larger than the sum of its proper divisors (2087588728948).

2561462641652 is a wasteful number, since it uses less digits than its factorization.

2561462641652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56765395 (or 56765393 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 50.

The spelling of 2561462641652 in words is "two trillion, five hundred sixty-one billion, four hundred sixty-two million, six hundred forty-one thousand, six hundred fifty-two".