61847674816 has 28 divisors (see below), whose sum is σ = 123944131080. Its totient is φ = 30617657600.

The previous prime is 61847674813. The next prime is 61847674831.

It is a happy number.

61847674816 is nontrivially palindromic in base 10.

61847674816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61847674813) 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, 4777546 + ... + 4790473.

It is an arithmetic number, because the mean of its divisors is an integer number (4426576110).

Almost surely, 2^61847674816 is an apocalyptic number.

It is an amenable number.

61847674816 is an abundant number, since it is smaller than the sum of its proper divisors (62096456264).

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

61847674816 is a wasteful number, since it uses less digits than its factorization.

61847674816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568132 (or 9568122 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The spelling of 61847674816 in words is "sixty-one billion, eight hundred forty-seven million, six hundred seventy-four thousand, eight hundred sixteen".