61347605412 has 48 divisors (see below), whose sum is σ = 144598608000. Its totient is φ = 20241826560.

The previous prime is 61347605411. The next prime is 61347605413. The reversal of 61347605412 is 21450674316.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61347605411) and next prime (61347605413).

It is not an unprimeable number, because it can be changed into a prime (61347605411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349737 + ... + 1394447.

It is an arithmetic number, because the mean of its divisors is an integer number (3012471000).

Almost surely, 2^61347605412 is an apocalyptic number.

It is an amenable number.

61347605412 is an abundant number, since it is smaller than the sum of its proper divisors (83251002588).

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

61347605412 is a wasteful number, since it uses less digits than its factorization.

61347605412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45876 (or 45874 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 61347605412 in words is "sixty-one billion, three hundred forty-seven million, six hundred five thousand, four hundred twelve".