61818618034590 has 32 divisors (see below), whose sum is σ = 149001441597216. Its totient is φ = 16414213885440.

The previous prime is 61818618034577. The next prime is 61818618034619. The reversal of 61818618034590 is 9543081681816.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4421925631 + ... + 4421939610.

It is an arithmetic number, because the mean of its divisors is an integer number (4656295049913).

Almost surely, 2^{61818618034590} is an apocalyptic number.

61818618034590 is an abundant number, since it is smaller than the sum of its proper divisors (87182823562626).

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

61818618034590 is a wasteful number, since it uses less digits than its factorization.

61818618034590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843865484.

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 61818618034590 in words is "sixty-one trillion, eight hundred eighteen billion, six hundred eighteen million, thirty-four thousand, five hundred ninety".