53654789971 has 2 divisors, whose sum is σ = 53654789972. Its totient is φ = 53654789970.

The previous prime is 53654789939. The next prime is 53654790041. The reversal of 53654789971 is 17998745635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53654789971 - 2⁵ = 53654789939 is a prime.

It is not a weakly prime, because it can be changed into another prime (53654789471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26827394985 + 26827394986.

It is an arithmetic number, because the mean of its divisors is an integer number (26827394986).

Almost surely, 2^53654789971 is an apocalyptic number.

53654789971 is a deficient number, since it is larger than the sum of its proper divisors (1).

53654789971 is an equidigital number, since it uses as much as digits as its factorization.

53654789971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57153600, while the sum is 64.

The spelling of 53654789971 in words is "fifty-three billion, six hundred fifty-four million, seven hundred eighty-nine thousand, nine hundred seventy-one".