30971000677 has 2 divisors, whose sum is σ = 30971000678. Its totient is φ = 30971000676.

The previous prime is 30971000663. The next prime is 30971000729. The reversal of 30971000677 is 77600017903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30434198116 + 536802561 = 174454^2 + 23169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30971000677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30971000617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15485500338 + 15485500339.

It is an arithmetic number, because the mean of its divisors is an integer number (15485500339).

Almost surely, 2^30971000677 is an apocalyptic number.

It is an amenable number.

30971000677 is a deficient number, since it is larger than the sum of its proper divisors (1).

30971000677 is an equidigital number, since it uses as much as digits as its factorization.

30971000677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 40.

The spelling of 30971000677 in words is "thirty billion, nine hundred seventy-one million, six hundred seventy-seven", and thus it is an aban number.