245235547838 has 4 divisors (see below), whose sum is σ = 367853321760. Its totient is φ = 122617773918.

The previous prime is 245235547759. The next prime is 245235547841. The reversal of 245235547838 is 838745532542.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61308886958 + ... + 61308886961.

It is an arithmetic number, because the mean of its divisors is an integer number (91963330440).

Almost surely, 2^245235547838 is an apocalyptic number.

245235547838 is a deficient number, since it is larger than the sum of its proper divisors (122617773922).

245235547838 is a wasteful number, since it uses less digits than its factorization.

245235547838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122617773921.

The product of its digits is 32256000, while the sum is 56.

The spelling of 245235547838 in words is "two hundred forty-five billion, two hundred thirty-five million, five hundred forty-seven thousand, eight hundred thirty-eight".