61233173620 has 24 divisors (see below), whose sum is σ = 128720519424. Its totient is φ = 24468344736.

The previous prime is 61233173611. The next prime is 61233173633. The reversal of 61233173620 is 2637133216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537644 + ... + 1576963.

It is an arithmetic number, because the mean of its divisors is an integer number (5363354976).

Almost surely, 2^61233173620 is an apocalyptic number.

It is an amenable number.

61233173620 is an abundant number, since it is smaller than the sum of its proper divisors (67487345804).

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

61233173620 is a wasteful number, since it uses less digits than its factorization.

61233173620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115599 (or 3115597 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 61233173620 in words is "sixty-one billion, two hundred thirty-three million, one hundred seventy-three thousand, six hundred twenty".