61247041600 has 84 divisors (see below), whose sum is σ = 152260057684. Its totient is φ = 24246190080.

The previous prime is 61247041577. The next prime is 61247041607. The reversal of 61247041600 is 614074216.

It can be written as a sum of positive squares in 6 ways, for example, as 7675161664 + 53571879936 = 87608^2 + 231456^2 .

It is not an unprimeable number, because it can be changed into a prime (61247041607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42117 + ... + 352516.

Almost surely, 2^61247041600 is an apocalyptic number.

It is an amenable number.

61247041600 is an abundant number, since it is smaller than the sum of its proper divisors (91013016084).

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

61247041600 is a wasteful number, since it uses less digits than its factorization.

61247041600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394752 (or 394737 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 61247041600 in words is "sixty-one billion, two hundred forty-seven million, forty-one thousand, six hundred".