253886291905 has 16 divisors (see below), whose sum is σ = 306751680000. Its totient is φ = 201717334080.

The previous prime is 253886291861. The next prime is 253886291929. The reversal of 253886291905 is 509192688352.

It is not a de Polignac number, because 253886291905 - 2¹⁹ = 253885767617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253886291905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6386440 + ... + 6426070.

It is an arithmetic number, because the mean of its divisors is an integer number (19171980000).

Almost surely, 2^253886291905 is an apocalyptic number.

It is an amenable number.

253886291905 is a deficient number, since it is larger than the sum of its proper divisors (52865388095).

253886291905 is a wasteful number, since it uses less digits than its factorization.

253886291905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48384.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 253886291905 in words is "two hundred fifty-three billion, eight hundred eighty-six million, two hundred ninety-one thousand, nine hundred five".