253433193938 has 16 divisors (see below), whose sum is σ = 383862473280. Its totient is φ = 125479176816.

The previous prime is 253433193919. The next prime is 253433193991. The reversal of 253433193938 is 839391334352.

253433193938 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×253433193938³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253433193938.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6900608 + ... + 6937236.

It is an arithmetic number, because the mean of its divisors is an integer number (23991404580).

Almost surely, 2^253433193938 is an apocalyptic number.

253433193938 is a deficient number, since it is larger than the sum of its proper divisors (130429279342).

253433193938 is a wasteful number, since it uses less digits than its factorization.

253433193938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70321.

The product of its digits is 6298560, while the sum is 53.

The spelling of 253433193938 in words is "two hundred fifty-three billion, four hundred thirty-three million, one hundred ninety-three thousand, nine hundred thirty-eight".