61310280616 has 32 divisors (see below), whose sum is σ = 123821540640. Its totient is φ = 28292038848.

The previous prime is 61310280611. The next prime is 61310280617. The reversal of 61310280616 is 61608201316.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61310280611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573415 + ... + 671881.

It is an arithmetic number, because the mean of its divisors is an integer number (3869423145).

Almost surely, 2^61310280616 is an apocalyptic number.

It is an amenable number.

61310280616 is an abundant number, since it is smaller than the sum of its proper divisors (62511260024).

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

61310280616 is a wasteful number, since it uses less digits than its factorization.

61310280616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104473 (or 104469 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 61310280616 in words is "sixty-one billion, three hundred ten million, two hundred eighty thousand, six hundred sixteen".