261053446426 has 8 divisors (see below), whose sum is σ = 400686685344. Its totient is φ = 127491217980.

The previous prime is 261053446393. The next prime is 261053446429. The reversal of 261053446426 is 624644350162.

261053446426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (261053446429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517752510 + ... + 1517752681.

It is an arithmetic number, because the mean of its divisors is an integer number (50085835668).

Almost surely, 2^261053446426 is an apocalyptic number.

261053446426 is a deficient number, since it is larger than the sum of its proper divisors (139633238918).

261053446426 is a wasteful number, since it uses less digits than its factorization.

261053446426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035505236.

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 261053446426 its reverse (624644350162), we get a palindrome (885697796588).

The spelling of 261053446426 in words is "two hundred sixty-one billion, fifty-three million, four hundred forty-six thousand, four hundred twenty-six".