261008010588 has 48 divisors (see below), whose sum is σ = 658730418080. Its totient is φ = 79959446784.

The previous prime is 261008010587. The next prime is 261008010643. The reversal of 261008010588 is 885010800162.

261008010588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×261008010588² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261008010581) 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 15 ways as a sum of consecutive naturals, for example, 3617395 + ... + 3688842.

Almost surely, 2^261008010588 is an apocalyptic number.

It is an amenable number.

261008010588 is an abundant number, since it is smaller than the sum of its proper divisors (397722407492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261008010588 is a wasteful number, since it uses less digits than its factorization.

261008010588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306486 (or 7306484 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 261008010588 in words is "two hundred sixty-one billion, eight million, ten thousand, five hundred eighty-eight".