254433612542 has 4 divisors (see below), whose sum is σ = 381650418816. Its totient is φ = 127216806270.

The previous prime is 254433612539. The next prime is 254433612553. The reversal of 254433612542 is 245216334452.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 254433612542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63608403134 + ... + 63608403137.

It is an arithmetic number, because the mean of its divisors is an integer number (95412604704).

Almost surely, 2^254433612542 is an apocalyptic number.

254433612542 is a deficient number, since it is larger than the sum of its proper divisors (127216806274).

254433612542 is a wasteful number, since it uses less digits than its factorization.

254433612542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127216806273.

The product of its digits is 691200, while the sum is 41.

Adding to 254433612542 its reverse (245216334452), we get a palindrome (499649946994).

The spelling of 254433612542 in words is "two hundred fifty-four billion, four hundred thirty-three million, six hundred twelve thousand, five hundred forty-two".