261343623462 has 16 divisors (see below), whose sum is σ = 523012522752. Its totient is φ = 87060328520.

The previous prime is 261343623461. The next prime is 261343623481. The reversal of 261343623462 is 264326343162.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261343623461) 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, 13542714 + ... + 13561997.

It is an arithmetic number, because the mean of its divisors is an integer number (32688282672).

Almost surely, 2^261343623462 is an apocalyptic number.

261343623462 is an abundant number, since it is smaller than the sum of its proper divisors (261668899290).

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

261343623462 is a wasteful number, since it uses less digits than its factorization.

261343623462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27106323.

The product of its digits is 746496, while the sum is 42.

The spelling of 261343623462 in words is "two hundred sixty-one billion, three hundred forty-three million, six hundred twenty-three thousand, four hundred sixty-two".