61304965203 has 18 divisors (see below), whose sum is σ = 82338388524. Its totient is φ = 40572924624.

The previous prime is 61304965199. The next prime is 61304965217. The reversal of 61304965203 is 30256940316.

It is not a de Polignac number, because 61304965203 - 2² = 61304965199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61304965273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69902601 + ... + 69903477.

It is an arithmetic number, because the mean of its divisors is an integer number (4574354918).

Almost surely, 2^61304965203 is an apocalyptic number.

61304965203 is a deficient number, since it is larger than the sum of its proper divisors (21033423321).

61304965203 is an frugal number, since it uses more digits than its factorization.

61304965203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 61304965203 in words is "sixty-one billion, three hundred four million, nine hundred sixty-five thousand, two hundred three".