542421255465 has 12 divisors (see below), whose sum is σ = 940196842884. Its totient is φ = 289291336224.

The previous prime is 542421255463. The next prime is 542421255547. The reversal of 542421255465 is 564552124245.

542421255465 is a `hidden beast` number, since 5 + 4 + 24 + 2 + 12 + 554 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 328425271056 + 213995984409 = 573084^2 + 462597^2 .

It is not a de Polignac number, because 542421255465 - 2¹ = 542421255463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 12053805677 = 542421255465 / (5 + 4 + 2 + 4 + 2 + 1 + 2 + 5 + 5 + 4 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 542421255465.

It is not an unprimeable number, because it can be changed into a prime (542421255463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6026902794 + ... + 6026902883.

It is an arithmetic number, because the mean of its divisors is an integer number (78349736907).

Almost surely, 2^542421255465 is an apocalyptic number.

It is an amenable number.

542421255465 is a deficient number, since it is larger than the sum of its proper divisors (397775587419).

542421255465 is a wasteful number, since it uses less digits than its factorization.

542421255465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053805688 (or 12053805685 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 45.

The spelling of 542421255465 in words is "five hundred forty-two billion, four hundred twenty-one million, two hundred fifty-five thousand, four hundred sixty-five".