2561422352654 has 24 divisors (see below), whose sum is σ = 4229196340824. Its totient is φ = 1162621922000.

The previous prime is 2561422352591. The next prime is 2561422352701. The reversal of 2561422352654 is 4562532241652.

It is a junction number, because it is equal to n+sod(n) for n = 2561422352599 and 2561422352608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7379852 + ... + 7719135.

It is an arithmetic number, because the mean of its divisors is an integer number (176216514201).

Almost surely, 2^{2561422352654} is an apocalyptic number.

2561422352654 is a deficient number, since it is larger than the sum of its proper divisors (1667773988170).

2561422352654 is a wasteful number, since it uses less digits than its factorization.

2561422352654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15099712 (or 15099701 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 47.

The spelling of 2561422352654 in words is "two trillion, five hundred sixty-one billion, four hundred twenty-two million, three hundred fifty-two thousand, six hundred fifty-four".