30527979677 has 6 divisors (see below), whose sum is σ = 33056924922. Its totient is φ = 28179673392.

The previous prime is 30527979673. The next prime is 30527979683. The reversal of 30527979677 is 77697972503.

It can be written as a sum of positive squares in 3 ways, for example, as 2529989401 + 27997990276 = 50299^2 + 167326^2 .

It is not a de Polignac number, because 30527979677 - 2² = 30527979673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30527979673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90319298 + ... + 90319635.

It is an arithmetic number, because the mean of its divisors is an integer number (5509487487).

Almost surely, 2^30527979677 is an apocalyptic number.

It is an amenable number.

30527979677 is a deficient number, since it is larger than the sum of its proper divisors (2528945245).

30527979677 is a wasteful number, since it uses less digits than its factorization.

30527979677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180638959 (or 180638946 counting only the distinct ones).

The product of its (nonzero) digits is 35006580, while the sum is 62.

The spelling of 30527979677 in words is "thirty billion, five hundred twenty-seven million, nine hundred seventy-nine thousand, six hundred seventy-seven".