61363704808 has 64 divisors (see below), whose sum is σ = 134066972160. Its totient is φ = 25788243456.

The previous prime is 61363704793. The next prime is 61363704923. The reversal of 61363704808 is 80840736316.

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, 663841 + ... + 750607.

It is an arithmetic number, because the mean of its divisors is an integer number (2094796440).

Almost surely, 2^61363704808 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 61363704808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67033486080).

61363704808 is an abundant number, since it is smaller than the sum of its proper divisors (72703267352).

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

61363704808 is a wasteful number, since it uses less digits than its factorization.

61363704808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87026 (or 87022 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 61363704808 in words is "sixty-one billion, three hundred sixty-three million, seven hundred four thousand, eight hundred eight".