253019366918 has 8 divisors (see below), whose sum is σ = 379539883440. Its totient is φ = 126506072440.

The previous prime is 253019366903. The next prime is 253019366969. The reversal of 253019366918 is 819663910352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253019366918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717058 + ... + 1858581.

It is an arithmetic number, because the mean of its divisors is an integer number (47442485430).

Almost surely, 2^253019366918 is an apocalyptic number.

253019366918 is a deficient number, since it is larger than the sum of its proper divisors (126520516522).

253019366918 is a wasteful number, since it uses less digits than its factorization.

253019366918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611022.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 253019366918 in words is "two hundred fifty-three billion, nineteen million, three hundred sixty-six thousand, nine hundred eighteen".