613721500080 has 80 divisors (see below), whose sum is σ = 2048885633760. Its totient is φ = 151069906944.

The previous prime is 613721500043. The next prime is 613721500097. The reversal of 613721500080 is 80005127316.

613721500080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 98349685 + ... + 98355924.

It is an arithmetic number, because the mean of its divisors is an integer number (25611070422).

Almost surely, 2^613721500080 is an apocalyptic number.

613721500080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613721500080 is an abundant number, since it is smaller than the sum of its proper divisors (1435164133680).

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

613721500080 is a wasteful number, since it uses less digits than its factorization.

613721500080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196705638 (or 196705632 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 613721500080 its reverse (80005127316), we get a palindrome (693726627396).

The spelling of 613721500080 in words is "six hundred thirteen billion, seven hundred twenty-one million, five hundred thousand, eighty".