542665461450 has 48 divisors (see below), whose sum is σ = 1538068968000. Its totient is φ = 124037819520.

The previous prime is 542665461449. The next prime is 542665461493. The reversal of 542665461450 is 54164566245.

It is a happy number.

It is a super-2 number, since 2×542665461450² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542665461450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258411075 + ... + 258413174.

It is an arithmetic number, because the mean of its divisors is an integer number (32043103500).

Almost surely, 2^542665461450 is an apocalyptic number.

542665461450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

542665461450 is an abundant number, since it is smaller than the sum of its proper divisors (995403506550).

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

542665461450 is a wasteful number, since it uses less digits than its factorization.

542665461450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516824271 (or 516824266 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 542665461450 in words is "five hundred forty-two billion, six hundred sixty-five million, four hundred sixty-one thousand, four hundred fifty".