261352023076 has 9 divisors (see below), whose sum is σ = 457367829681. Its totient is φ = 130675500312.

The previous prime is 261352023061. The next prime is 261352023077. The reversal of 261352023076 is 670320253162.

The square root of 261352023076 is 511226.

It is a perfect power (a square), and thus also a powerful number.

261352023076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 261349978176 = 1430^2 + 511224^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261352023077) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 894646 + ... + 1150258.

Almost surely, 2^261352023076 is an apocalyptic number.

261352023076 is the 511226-th square number.

It is an amenable number.

261352023076 is a deficient number, since it is larger than the sum of its proper divisors (196015806605).

261352023076 is an frugal number, since it uses more digits than its factorization.

261352023076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511230 (or 255615 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 261352023076 in words is "two hundred sixty-one billion, three hundred fifty-two million, twenty-three thousand, seventy-six".