61819448 has 16 divisors (see below), whose sum is σ = 116223000. Its totient is φ = 30826656.

The previous prime is 61819447. The next prime is 61819453. The reversal of 61819448 is 84491816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61819447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7163 + ... + 13226.

Almost surely, 2^61819448 is an apocalyptic number.

It is an amenable number.

61819448 is a deficient number, since it is larger than the sum of its proper divisors (54403552).

61819448 is a wasteful number, since it uses less digits than its factorization.

61819448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774 (or 20770 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 61819448 is about 7862.5344514349. The cubic root of 61819448 is about 395.4045910516.

The spelling of 61819448 in words is "sixty-one million, eight hundred nineteen thousand, four hundred forty-eight".