60439561139 has 4 divisors (see below), whose sum is σ = 60494357856. Its totient is φ = 60384764424.

The previous prime is 60439561109. The next prime is 60439561141. The reversal of 60439561139 is 93116593406.

60439561139 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-60439561139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60439561093 and 60439561102.

It is not an unprimeable number, because it can be changed into a prime (60439561109) 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, 27396704 + ... + 27398909.

It is an arithmetic number, because the mean of its divisors is an integer number (15123589464).

Almost surely, 2^60439561139 is an apocalyptic number.

60439561139 is a deficient number, since it is larger than the sum of its proper divisors (54796717).

60439561139 is a wasteful number, since it uses less digits than its factorization.

60439561139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54796716.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 60439561139 in words is "sixty billion, four hundred thirty-nine million, five hundred sixty-one thousand, one hundred thirty-nine".