54678422487643 has 4 divisors (see below), whose sum is σ = 54983888535240. Its totient is φ = 54372956440048.

The previous prime is 54678422487553. The next prime is 54678422487659. The reversal of 54678422487643 is 34678422487645.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54678422487643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54678422487743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152733023530 + ... + 152733023887.

It is an arithmetic number, because the mean of its divisors is an integer number (13745972133810).

Almost surely, 2^{54678422487643} is an apocalyptic number.

54678422487643 is a deficient number, since it is larger than the sum of its proper divisors (305466047597).

54678422487643 is a wasteful number, since it uses less digits than its factorization.

54678422487643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305466047596.

The product of its digits is 1734082560, while the sum is 70.

The spelling of 54678422487643 in words is "fifty-four trillion, six hundred seventy-eight billion, four hundred twenty-two million, four hundred eighty-seven thousand, six hundred forty-three".