54670842447 has 16 divisors (see below), whose sum is σ = 78509286240. Its totient is φ = 33640353792.

The previous prime is 54670842431. The next prime is 54670842449. The reversal of 54670842447 is 74424807645.

It is a happy number.

It is not a de Polignac number, because 54670842447 - 2⁴ = 54670842431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54670842447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54670842449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379963 + ... + 503699.

It is an arithmetic number, because the mean of its divisors is an integer number (4906830390).

Almost surely, 2^54670842447 is an apocalyptic number.

54670842447 is a deficient number, since it is larger than the sum of its proper divisors (23838443793).

54670842447 is a wasteful number, since it uses less digits than its factorization.

54670842447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135082.

The product of its (nonzero) digits is 6021120, while the sum is 51.

It can be divided in two parts, 546708 and 42447, that added together give a triangular number (589155 = T₁₀₈₅).

The spelling of 54670842447 in words is "fifty-four billion, six hundred seventy million, eight hundred forty-two thousand, four hundred forty-seven".