54351389947 has 2 divisors, whose sum is σ = 54351389948. Its totient is φ = 54351389946.

The previous prime is 54351389923. The next prime is 54351389971. The reversal of 54351389947 is 74998315345.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (54351389923) and next prime (54351389971).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54351389947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54351389891 and 54351389900.

It is not a weakly prime, because it can be changed into another prime (54351389347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27175694973 + 27175694974.

It is an arithmetic number, because the mean of its divisors is an integer number (27175694974).

Almost surely, 2^54351389947 is an apocalyptic number.

54351389947 is a deficient number, since it is larger than the sum of its proper divisors (1).

54351389947 is an equidigital number, since it uses as much as digits as its factorization.

54351389947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 58.

The spelling of 54351389947 in words is "fifty-four billion, three hundred fifty-one million, three hundred eighty-nine thousand, nine hundred forty-seven".