10902391205 has 4 divisors (see below), whose sum is σ = 13082869452. Its totient is φ = 8721912960.

The previous prime is 10902391189. The next prime is 10902391229. The reversal of 10902391205 is 50219320901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50219320901 = 67 ⋅749542103.

It can be written as a sum of positive squares in 2 ways, for example, as 7744176001 + 3158215204 = 88001^2 + 56198^2 .

It is not a de Polignac number, because 10902391205 - 2⁴ = 10902391189 is a prime.

It is a super-2 number, since 2×10902391205² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 1090239116 + ... + 1090239125.

It is an arithmetic number, because the mean of its divisors is an integer number (3270717363).

Almost surely, 2^10902391205 is an apocalyptic number.

It is an amenable number.

10902391205 is a deficient number, since it is larger than the sum of its proper divisors (2180478247).

10902391205 is an equidigital number, since it uses as much as digits as its factorization.

10902391205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180478246.

The product of its (nonzero) digits is 4860, while the sum is 32.

The spelling of 10902391205 in words is "ten billion, nine hundred two million, three hundred ninety-one thousand, two hundred five".