261941453284 has 12 divisors (see below), whose sum is σ = 523882906624. Its totient is φ = 112260622824.

The previous prime is 261941453239. The next prime is 261941453287. The reversal of 261941453284 is 482354149162.

261941453284 is an admirable number.

It is a super-2 number, since 2×261941453284² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (261941453287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677525924 + ... + 4677525979.

Almost surely, 2^261941453284 is an apocalyptic number.

It is an amenable number.

261941453284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

261941453284 is a wasteful number, since it uses less digits than its factorization.

261941453284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9355051914 (or 9355051912 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 261941453284 in words is "two hundred sixty-one billion, nine hundred forty-one million, four hundred fifty-three thousand, two hundred eighty-four".