245987407453 has 2 divisors, whose sum is σ = 245987407454. Its totient is φ = 245987407452.

The previous prime is 245987407423. The next prime is 245987407489. The reversal of 245987407453 is 354704789542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178284928644 + 67702478809 = 422238^2 + 260197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245987407453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245987407423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122993703726 + 122993703727.

It is an arithmetic number, because the mean of its divisors is an integer number (122993703727).

Almost surely, 2^245987407453 is an apocalyptic number.

It is an amenable number.

245987407453 is a deficient number, since it is larger than the sum of its proper divisors (1).

245987407453 is an equidigital number, since it uses as much as digits as its factorization.

245987407453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 245987407453 in words is "two hundred forty-five billion, nine hundred eighty-seven million, four hundred seven thousand, four hundred fifty-three".