261228594414 has 32 divisors (see below), whose sum is σ = 549333188640. Its totient is φ = 82695312000.

The previous prime is 261228594409. The next prime is 261228594433. The reversal of 261228594414 is 414495822162.

It is a super-2 number, since 2×261228594414² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12295237 + ... + 12316464.

It is an arithmetic number, because the mean of its divisors is an integer number (17166662145).

Almost surely, 2^261228594414 is an apocalyptic number.

261228594414 is an abundant number, since it is smaller than the sum of its proper divisors (288104594226).

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

261228594414 is a wasteful number, since it uses less digits than its factorization.

261228594414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24611796.

The product of its digits is 1105920, while the sum is 48.

The spelling of 261228594414 in words is "two hundred sixty-one billion, two hundred twenty-eight million, five hundred ninety-four thousand, four hundred fourteen".