61789357580 has 24 divisors (see below), whose sum is σ = 129764246640. Its totient is φ = 24714486720.

The previous prime is 61789357579. The next prime is 61789357589. The reversal of 61789357580 is 8575398716.

61789357580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61789357589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394190 + ... + 528170.

It is an arithmetic number, because the mean of its divisors is an integer number (5406843610).

Almost surely, 2^61789357580 is an apocalyptic number.

It is an amenable number.

61789357580 is an abundant number, since it is smaller than the sum of its proper divisors (67974889060).

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

61789357580 is a wasteful number, since it uses less digits than its factorization.

61789357580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157049 (or 157047 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 61789357580 in words is "sixty-one billion, seven hundred eighty-nine million, three hundred fifty-seven thousand, five hundred eighty".