61843655626 has 4 divisors (see below), whose sum is σ = 92765483442. Its totient is φ = 30921827812.

The previous prime is 61843655591. The next prime is 61843655647. The reversal of 61843655626 is 62655634816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44647267401 + 17196388225 = 211299^2 + 131135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15460913905 + ... + 15460913908.

Almost surely, 2^61843655626 is an apocalyptic number.

61843655626 is a deficient number, since it is larger than the sum of its proper divisors (30921827816).

61843655626 is a wasteful number, since it uses less digits than its factorization.

61843655626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30921827815.

The product of its digits is 6220800, while the sum is 52.

The spelling of 61843655626 in words is "sixty-one billion, eight hundred forty-three million, six hundred fifty-five thousand, six hundred twenty-six".