245446644542 has 16 divisors (see below), whose sum is σ = 415489618800. Its totient is φ = 107719530240.

The previous prime is 245446644491. The next prime is 245446644557.

It is a happy number.

245446644542 is nontrivially palindromic in base 10.

245446644542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192355667 + ... + 192356942.

It is an arithmetic number, because the mean of its divisors is an integer number (25968101175).

Almost surely, 2^245446644542 is an apocalyptic number.

245446644542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245446644542 is a deficient number, since it is larger than the sum of its proper divisors (170042974258).

245446644542 is a wasteful number, since it uses less digits than its factorization.

245446644542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384712651.

The product of its digits is 14745600, while the sum is 50.

It can be divided in two parts, 245446 and 644542, that added together give a palindrome (889988).

The spelling of 245446644542 in words is "two hundred forty-five billion, four hundred forty-six million, six hundred forty-four thousand, five hundred forty-two".