54243431646 has 16 divisors (see below), whose sum is σ = 108510244608. Its totient is φ = 18077247000.

The previous prime is 54243431639. The next prime is 54243431659. The reversal of 54243431646 is 64613434245.

It is a junction number, because it is equal to n+sod(n) for n = 54243431598 and 54243431607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943990 + ... + 999801.

It is an arithmetic number, because the mean of its divisors is an integer number (6781890288).

Almost surely, 2^54243431646 is an apocalyptic number.

54243431646 is an abundant number, since it is smaller than the sum of its proper divisors (54266812962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54243431646 is a wasteful number, since it uses less digits than its factorization.

54243431646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948447.

The product of its digits is 829440, while the sum is 42.

The spelling of 54243431646 in words is "fifty-four billion, two hundred forty-three million, four hundred thirty-one thousand, six hundred forty-six".