253361919843 has 16 divisors (see below), whose sum is σ = 375365040160. Its totient is φ = 168901625088.

The previous prime is 253361919817. The next prime is 253361919851. The reversal of 253361919843 is 348919163352.

253361919843 is a `hidden beast` number, since 2 + 5 + 3 + 3 + 619 + 19 + 8 + 4 + 3 = 666.

It is not a de Polignac number, because 253361919843 - 2⁹ = 253361919331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253361919843.

It is not an unprimeable number, because it can be changed into a prime (253361919443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625671 + ... + 947727.

It is an arithmetic number, because the mean of its divisors is an integer number (23460315010).

Almost surely, 2^253361919843 is an apocalyptic number.

253361919843 is a deficient number, since it is larger than the sum of its proper divisors (122003120317).

253361919843 is a wasteful number, since it uses less digits than its factorization.

253361919843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351203 (or 351197 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 253361919843 in words is "two hundred fifty-three billion, three hundred sixty-one million, nine hundred nineteen thousand, eight hundred forty-three".