261766984462 has 16 divisors (see below), whose sum is σ = 392983390800. Its totient is φ = 130772572480.

The previous prime is 261766984459. The next prime is 261766984469. The reversal of 261766984462 is 264489667162.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 261766984462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261766984469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12592137 + ... + 12612907.

It is an arithmetic number, because the mean of its divisors is an integer number (24561461925).

Almost surely, 2^261766984462 is an apocalyptic number.

261766984462 is a deficient number, since it is larger than the sum of its proper divisors (131216406338).

261766984462 is a wasteful number, since it uses less digits than its factorization.

261766984462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25811.

The product of its digits is 41803776, while the sum is 61.

The spelling of 261766984462 in words is "two hundred sixty-one billion, seven hundred sixty-six million, nine hundred eighty-four thousand, four hundred sixty-two".