542428781503754 has 8 divisors (see below), whose sum is σ = 814475969773668. Its totient is φ = 270936791579200.

The previous prime is 542428781503711. The next prime is 542428781503757. The reversal of 542428781503754 is 457305187824245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 533297040900625 + 9131740603129 = 23093225^2 + 3021877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542428781503757) 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, 138799583897 + ... + 138799587804.

Almost surely, 2^{542428781503754} is an apocalyptic number.

542428781503754 is a deficient number, since it is larger than the sum of its proper divisors (272047188269914).

542428781503754 is a wasteful number, since it uses less digits than its factorization.

542428781503754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277599172680.

The product of its (nonzero) digits is 301056000, while the sum is 65.

The spelling of 542428781503754 in words is "five hundred forty-two trillion, four hundred twenty-eight billion, seven hundred eighty-one million, five hundred three thousand, seven hundred fifty-four".