245145932819 has 8 divisors (see below), whose sum is σ = 246107845632. Its totient is φ = 244184246280.

The previous prime is 245145932809. The next prime is 245145932821. The reversal of 245145932819 is 918239541542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245145932819 - 2⁴ = 245145932803 is a prime.

It is a super-2 number, since 2×245145932819² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245145932809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307422 + ... + 2411324.

It is an arithmetic number, because the mean of its divisors is an integer number (30763480704).

Almost surely, 2^245145932819 is an apocalyptic number.

245145932819 is a deficient number, since it is larger than the sum of its proper divisors (961912813).

245145932819 is a wasteful number, since it uses less digits than its factorization.

245145932819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113137.

The product of its digits is 3110400, while the sum is 53.

The spelling of 245145932819 in words is "two hundred forty-five billion, one hundred forty-five million, nine hundred thirty-two thousand, eight hundred nineteen".