61218818105626 has 8 divisors (see below), whose sum is σ = 91828276508160. Its totient is φ = 30609392602908.

The previous prime is 61218818105609. The next prime is 61218818105663. The reversal of 61218818105626 is 62650181881216.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877786 + ... + 11433253.

It is an arithmetic number, because the mean of its divisors is an integer number (11478534563520).

Almost surely, 2^{61218818105626} is an apocalyptic number.

61218818105626 is a deficient number, since it is larger than the sum of its proper divisors (30609458402534).

61218818105626 is a wasteful number, since it uses less digits than its factorization.

61218818105626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16449908.

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 61218818105626 in words is "sixty-one trillion, two hundred eighteen billion, eight hundred eighteen million, one hundred five thousand, six hundred twenty-six".