542731120645 has 16 divisors (see below), whose sum is σ = 744481745280. Its totient is φ = 372076092864.

The previous prime is 542731120639. The next prime is 542731120649. The reversal of 542731120645 is 546021137245.

It is not a de Polignac number, because 542731120645 - 2⁷ = 542731120517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542731120598 and 542731120607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542731120649) 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, 1555890 + ... + 1872499.

It is an arithmetic number, because the mean of its divisors is an integer number (46530109080).

Almost surely, 2^542731120645 is an apocalyptic number.

It is an amenable number.

542731120645 is a deficient number, since it is larger than the sum of its proper divisors (201750624635).

542731120645 is a wasteful number, since it uses less digits than its factorization.

542731120645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432924.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 542731120645 in words is "five hundred forty-two billion, seven hundred thirty-one million, one hundred twenty thousand, six hundred forty-five".