54147356642 has 16 divisors (see below), whose sum is σ = 86850221112. Its totient is φ = 25228819200.

The previous prime is 54147356639. The next prime is 54147356647. The reversal of 54147356642 is 24665374145.

It can be written as a sum of positive squares in 4 ways, for example, as 53772508321 + 374848321 = 231889^2 + 19361^2 .

It is not an unprimeable number, because it can be changed into a prime (54147356647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7880573 + ... + 7887440.

Almost surely, 2^54147356642 is an apocalyptic number.

54147356642 is a deficient number, since it is larger than the sum of its proper divisors (32702864470).

54147356642 is a wasteful number, since it uses less digits than its factorization.

54147356642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15768133.

The product of its digits is 2419200, while the sum is 47.

The spelling of 54147356642 in words is "fifty-four billion, one hundred forty-seven million, three hundred fifty-six thousand, six hundred forty-two".