245450144421 has 12 divisors (see below), whose sum is σ = 354561372672. Its totient is φ = 163623148776.

The previous prime is 245450144417. The next prime is 245450144461. The reversal of 245450144421 is 124441054542.

245450144421 is a `hidden beast` number, since 2 + 45 + 4 + 50 + 144 + 421 = 666.

It is not a de Polignac number, because 245450144421 - 2² = 245450144417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245450144461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704101 + ... + 993306.

It is an arithmetic number, because the mean of its divisors is an integer number (29546781056).

Almost surely, 2^245450144421 is an apocalyptic number.

It is an amenable number.

245450144421 is a deficient number, since it is larger than the sum of its proper divisors (109111228251).

245450144421 is a wasteful number, since it uses less digits than its factorization.

245450144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713480 (or 1713477 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 245450144421 its reverse (124441054542), we get a palindrome (369891198963).

The spelling of 245450144421 in words is "two hundred forty-five billion, four hundred fifty million, one hundred forty-four thousand, four hundred twenty-one".