245231443879 has 4 divisors (see below), whose sum is σ = 245232976176. Its totient is φ = 245229911584.

The previous prime is 245231443829. The next prime is 245231443903. The reversal of 245231443879 is 978344132542.

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

It is a cyclic number.

It is not a de Polignac number, because 245231443879 - 2²¹ = 245229346727 is a prime.

It is a super-2 number, since 2×245231443879² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245231443829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493819 + ... + 856924.

It is an arithmetic number, because the mean of its divisors is an integer number (61308244044).

Almost surely, 2^245231443879 is an apocalyptic number.

245231443879 is a deficient number, since it is larger than the sum of its proper divisors (1532297).

245231443879 is a wasteful number, since it uses less digits than its factorization.

245231443879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532296.

The product of its digits is 5806080, while the sum is 52.

The spelling of 245231443879 in words is "two hundred forty-five billion, two hundred thirty-one million, four hundred forty-three thousand, eight hundred seventy-nine".