61508207339 has 4 divisors (see below), whose sum is σ = 63008407560. Its totient is φ = 60008007120.

The previous prime is 61508207333. The next prime is 61508207357. The reversal of 61508207339 is 93370280516.

61508207339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61508207339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61508207339.

It is not an unprimeable number, because it can be changed into a prime (61508207333) 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, 750100049 + ... + 750100130.

It is an arithmetic number, because the mean of its divisors is an integer number (15752101890).

Almost surely, 2^61508207339 is an apocalyptic number.

61508207339 is a deficient number, since it is larger than the sum of its proper divisors (1500200221).

61508207339 is a wasteful number, since it uses less digits than its factorization.

61508207339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500200220.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 61508207339 in words is "sixty-one billion, five hundred eight million, two hundred seven thousand, three hundred thirty-nine".