245402434504542 has 64 divisors (see below), whose sum is σ = 563966250430464. Its totient is φ = 69734773981440.

The previous prime is 245402434504501. The next prime is 245402434504543. The reversal of 245402434504542 is 245405434204542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 245402434504491 and 245402434504500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245402434504543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2410183 + ... + 22284834.

It is an arithmetic number, because the mean of its divisors is an integer number (8811972662976).

Almost surely, 2^{245402434504542} is an apocalyptic number.

245402434504542 is an abundant number, since it is smaller than the sum of its proper divisors (318563815925922).

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

245402434504542 is a wasteful number, since it uses less digits than its factorization.

245402434504542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24696313.

The product of its (nonzero) digits is 12288000, while the sum is 48.

The spelling of 245402434504542 in words is "two hundred forty-five trillion, four hundred two billion, four hundred thirty-four million, five hundred four thousand, five hundred forty-two".