61722275722 has 8 divisors (see below), whose sum is σ = 92587762116. Its totient is φ = 30859688352.

The previous prime is 61722275707. The next prime is 61722275759. The reversal of 61722275722 is 22757222716.

It can be written as a sum of positive squares in 2 ways, for example, as 58849422921 + 2872852801 = 242589^2 + 53599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 670723 + ... + 757174.

Almost surely, 2^61722275722 is an apocalyptic number.

61722275722 is a deficient number, since it is larger than the sum of its proper divisors (30865486394).

61722275722 is a wasteful number, since it uses less digits than its factorization.

61722275722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449512.

The product of its digits is 329280, while the sum is 43.

The spelling of 61722275722 in words is "sixty-one billion, seven hundred twenty-two million, two hundred seventy-five thousand, seven hundred twenty-two".