2108964232477 has 2 divisors, whose sum is σ = 2108964232478. Its totient is φ = 2108964232476.

The previous prime is 2108964232429. The next prime is 2108964232549. The reversal of 2108964232477 is 7742324698012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1272505826916 + 836458405561 = 1128054^2 + 914581^2 .

It is a cyclic number.

It is not a de Polignac number, because 2108964232477 - 2³⁹ = 1559208418589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2108964232577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054482116238 + 1054482116239.

It is an arithmetic number, because the mean of its divisors is an integer number (1054482116239).

Almost surely, 2^{2108964232477} is an apocalyptic number.

It is an amenable number.

2108964232477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108964232477 is an equidigital number, since it uses as much as digits as its factorization.

2108964232477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 2108964232477 in words is "two trillion, one hundred eight billion, nine hundred sixty-four million, two hundred thirty-two thousand, four hundred seventy-seven".