61993003072 has 168 divisors, whose sum is σ = 168120852480. Its totient is φ = 22295024640.

The previous prime is 61993003067. The next prime is 61993003109. The reversal of 61993003072 is 27030039916.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379329 + ... + 517567.

It is an arithmetic number, because the mean of its divisors is an integer number (1000719360).

Almost surely, 2^61993003072 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 61993003072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84060426240).

61993003072 is an abundant number, since it is smaller than the sum of its proper divisors (106127849408).

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

61993003072 is a wasteful number, since it uses less digits than its factorization.

61993003072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138289 (or 138272 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The spelling of 61993003072 in words is "sixty-one billion, nine hundred ninety-three million, three thousand, seventy-two".