253945334543419 has 16 divisors (see below), whose sum is σ = 262811312749440. Its totient is φ = 245086660224000.

The previous prime is 253945334543389. The next prime is 253945334543443. The reversal of 253945334543419 is 914345433549352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253945334543419 is a prime.

It is a super-2 number, since 2×253945334543419² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253945334543489) 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, 693597934 + ... + 693963964.

It is an arithmetic number, because the mean of its divisors is an integer number (16425707046840).

Almost surely, 2^{253945334543419} is an apocalyptic number.

253945334543419 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

253945334543419 is a deficient number, since it is larger than the sum of its proper divisors (8865978206021).

253945334543419 is a wasteful number, since it uses less digits than its factorization.

253945334543419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375942.

The product of its digits is 419904000, while the sum is 64.

The spelling of 253945334543419 in words is "two hundred fifty-three trillion, nine hundred forty-five billion, three hundred thirty-four million, five hundred forty-three thousand, four hundred nineteen".