542625626544 has 20 divisors (see below), whose sum is σ = 1401782868696. Its totient is φ = 180875208832.

The previous prime is 542625626509. The next prime is 542625626561. The reversal of 542625626544 is 445626526245.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652350229 + ... + 5652350324.

Almost surely, 2^542625626544 is an apocalyptic number.

It is an amenable number.

542625626544 is an abundant number, since it is smaller than the sum of its proper divisors (859157242152).

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

542625626544 is a wasteful number, since it uses less digits than its factorization.

542625626544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304700564 (or 11304700558 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 51.

The spelling of 542625626544 in words is "five hundred forty-two billion, six hundred twenty-five million, six hundred twenty-six thousand, five hundred forty-four".