61212388448 has 48 divisors (see below), whose sum is σ = 122583993840. Its totient is φ = 30083698176.

The previous prime is 61212388429. The next prime is 61212388477. The reversal of 61212388448 is 84488321216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464738 + ... + 581726.

It is an arithmetic number, because the mean of its divisors is an integer number (2553833205).

Almost surely, 2^61212388448 is an apocalyptic number.

It is an amenable number.

61212388448 is an abundant number, since it is smaller than the sum of its proper divisors (61371605392).

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

61212388448 is a wasteful number, since it uses less digits than its factorization.

61212388448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117279 (or 117271 counting only the distinct ones).

The product of its digits is 589824, while the sum is 47.

The spelling of 61212388448 in words is "sixty-one billion, two hundred twelve million, three hundred eighty-eight thousand, four hundred forty-eight".