261722481482 has 16 divisors (see below), whose sum is σ = 489455030592. Its totient is φ = 101969797920.

The previous prime is 261722481481. The next prime is 261722481487. The reversal of 261722481482 is 284184227162.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (261722481481) 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, 849748163 + ... + 849748470.

It is an arithmetic number, because the mean of its divisors is an integer number (30590939412).

Almost surely, 2^261722481482 is an apocalyptic number.

261722481482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261722481482 is a deficient number, since it is larger than the sum of its proper divisors (227732549110).

261722481482 is a wasteful number, since it uses less digits than its factorization.

261722481482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699496653.

The product of its digits is 688128, while the sum is 47.

The spelling of 261722481482 in words is "two hundred sixty-one billion, seven hundred twenty-two million, four hundred eighty-one thousand, four hundred eighty-two".