245192144451 has 4 divisors (see below), whose sum is σ = 326922859272. Its totient is φ = 163461429632.

The previous prime is 245192144443. The next prime is 245192144501. The reversal of 245192144451 is 154441291542.

245192144451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245192144451 - 2³ = 245192144443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245192124451) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40865357406 + ... + 40865357411.

It is an arithmetic number, because the mean of its divisors is an integer number (81730714818).

Almost surely, 2^245192144451 is an apocalyptic number.

245192144451 is a deficient number, since it is larger than the sum of its proper divisors (81730714821).

245192144451 is an equidigital number, since it uses as much as digits as its factorization.

245192144451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81730714820.

The product of its digits is 230400, while the sum is 42.

The spelling of 245192144451 in words is "two hundred forty-five billion, one hundred ninety-two million, one hundred forty-four thousand, four hundred fifty-one".