54136013947 has 2 divisors, whose sum is σ = 54136013948. Its totient is φ = 54136013946.

The previous prime is 54136013933. The next prime is 54136013957. The reversal of 54136013947 is 74931063145.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54136013947 is a prime.

It is not a weakly prime, because it can be changed into another prime (54136013927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27068006973 + 27068006974.

It is an arithmetic number, because the mean of its divisors is an integer number (27068006974).

Almost surely, 2^54136013947 is an apocalyptic number.

54136013947 is a deficient number, since it is larger than the sum of its proper divisors (1).

54136013947 is an equidigital number, since it uses as much as digits as its factorization.

54136013947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 54136013947 in words is "fifty-four billion, one hundred thirty-six million, thirteen thousand, nine hundred forty-seven".