10243501905 has 64 divisors (see below), whose sum is σ = 20217189888. Its totient is φ = 4312811520.

The previous prime is 10243501897. The next prime is 10243501937. The reversal of 10243501905 is 50910534201.

It is not a de Polignac number, because 10243501905 - 2³ = 10243501897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 615595 + ... + 632015.

It is an arithmetic number, because the mean of its divisors is an integer number (315893592).

Almost surely, 2^10243501905 is an apocalyptic number.

10243501905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10243501905 is a deficient number, since it is larger than the sum of its proper divisors (9973687983).

10243501905 is a wasteful number, since it uses less digits than its factorization.

10243501905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16906.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 10243501905 in words is "ten billion, two hundred forty-three million, five hundred one thousand, nine hundred five".