61373523020 has 48 divisors (see below), whose sum is σ = 133443072000. Its totient is φ = 23682543360.

The previous prime is 61373522971. The next prime is 61373523031. The reversal of 61373523020 is 2032537316.

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, 640181 + ... + 729779.

It is an arithmetic number, because the mean of its divisors is an integer number (2780064000).

Almost surely, 2^61373523020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61373523020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66721536000).

61373523020 is an abundant number, since it is smaller than the sum of its proper divisors (72069548980).

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

61373523020 is a wasteful number, since it uses less digits than its factorization.

61373523020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90818 (or 90816 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 32.

The spelling of 61373523020 in words is "sixty-one billion, three hundred seventy-three million, five hundred twenty-three thousand, twenty".