30977683967 has 2 divisors, whose sum is σ = 30977683968. Its totient is φ = 30977683966.

The previous prime is 30977683921. The next prime is 30977683991. The reversal of 30977683967 is 76938677903.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30977683967 - 2¹⁰ = 30977682943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30977685967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15488841983 + 15488841984.

It is an arithmetic number, because the mean of its divisors is an integer number (15488841984).

Almost surely, 2^30977683967 is an apocalyptic number.

30977683967 is a deficient number, since it is larger than the sum of its proper divisors (1).

30977683967 is an equidigital number, since it uses as much as digits as its factorization.

30977683967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72013536, while the sum is 65.

The spelling of 30977683967 in words is "thirty billion, nine hundred seventy-seven million, six hundred eighty-three thousand, nine hundred sixty-seven".