613994795643880 has 256 divisors, whose sum is σ = 1690178767441920. Its totient is φ = 196208629917696.

The previous prime is 613994795643871. The next prime is 613994795643881. The reversal of 613994795643880 is 88346597499316.

613994795643880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 613994795643794 and 613994795643803.

It is not an unprimeable number, because it can be changed into a prime (613994795643881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31152259 + ... + 46887661.

It is an arithmetic number, because the mean of its divisors is an integer number (6602260810320).

Almost surely, 2^{613994795643880} 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 613994795643880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845089383720960).

613994795643880 is an abundant number, since it is smaller than the sum of its proper divisors (1076183971798040).

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

613994795643880 is a wasteful number, since it uses less digits than its factorization.

613994795643880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15735600 (or 15735596 counting only the distinct ones).

The product of its (nonzero) digits is 8465264640, while the sum is 82.

The spelling of 613994795643880 in words is "six hundred thirteen trillion, nine hundred ninety-four billion, seven hundred ninety-five million, six hundred forty-three thousand, eight hundred eighty".