261744460046 has 4 divisors (see below), whose sum is σ = 392616690072. Its totient is φ = 130872230022.

The previous prime is 261744459983. The next prime is 261744460057. The reversal of 261744460046 is 640064447162.

It is a happy number.

261744460046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 261744459979 and 261744460006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65436115010 + ... + 65436115013.

It is an arithmetic number, because the mean of its divisors is an integer number (98154172518).

Almost surely, 2^261744460046 is an apocalyptic number.

261744460046 is a deficient number, since it is larger than the sum of its proper divisors (130872230026).

261744460046 is a wasteful number, since it uses less digits than its factorization.

261744460046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130872230025.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 261744460046 in words is "two hundred sixty-one billion, seven hundred forty-four million, four hundred sixty thousand, forty-six".