61485231360 has 864 divisors, whose sum is σ = 240517251072. Its totient is φ = 13330759680.

The previous prime is 61485231359. The next prime is 61485231373. The reversal of 61485231360 is 6313258416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 484135617 + ... + 484135743.

It is an arithmetic number, because the mean of its divisors is an integer number (278376448).

Almost surely, 2^61485231360 is an apocalyptic number.

61485231360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61485231360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120258625536).

61485231360 is an abundant number, since it is smaller than the sum of its proper divisors (179032019712).

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

61485231360 is a wasteful number, since it uses less digits than its factorization.

61485231360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 61485231360 its reverse (6313258416), we get a palindrome (67798489776).

The spelling of 61485231360 in words is "sixty-one billion, four hundred eighty-five million, two hundred thirty-one thousand, three hundred sixty".