542607885381 has 4 divisors (see below), whose sum is σ = 723477180512. Its totient is φ = 361738590252.

The previous prime is 542607885319. The next prime is 542607885389. The reversal of 542607885381 is 183588706245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 542607885381 - 2¹⁵ = 542607852613 is a prime.

It is a super-2 number, since 2×542607885381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542607885389) 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, 90434647561 + ... + 90434647566.

It is an arithmetic number, because the mean of its divisors is an integer number (180869295128).

Almost surely, 2^542607885381 is an apocalyptic number.

It is an amenable number.

542607885381 is a deficient number, since it is larger than the sum of its proper divisors (180869295131).

542607885381 is a wasteful number, since it uses less digits than its factorization.

542607885381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180869295130.

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 542607885381 in words is "five hundred forty-two billion, six hundred seven million, eight hundred eighty-five thousand, three hundred eighty-one".