61608727400 has 192 divisors, whose sum is σ = 166126420800. Its totient is φ = 21012480000.

The previous prime is 61608727319. The next prime is 61608727409. The reversal of 61608727400 is 472780616.

It is not an unprimeable number, because it can be changed into a prime (61608727409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4214504 + ... + 4229096.

It is an arithmetic number, because the mean of its divisors is an integer number (865241775).

Almost surely, 2^61608727400 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 61608727400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83063210400).

61608727400 is an abundant number, since it is smaller than the sum of its proper divisors (104517693400).

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

61608727400 is a wasteful number, since it uses less digits than its factorization.

61608727400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14740 (or 14731 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 61608727400 in words is "sixty-one billion, six hundred eight million, seven hundred twenty-seven thousand, four hundred".