10508365858 has 4 divisors (see below), whose sum is σ = 15762548790. Its totient is φ = 5254182928.

The previous prime is 10508365837. The next prime is 10508365871. The reversal of 10508365858 is 85856380501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85856380501 = 41 ⋅2094058061.

It can be written as a sum of positive squares in only one way, i.e., 10484326449 + 24039409 = 102393^2 + 4903^2 .

It is a super-3 number, since 3×10508365858³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627091463 + ... + 2627091466.

Almost surely, 2^10508365858 is an apocalyptic number.

10508365858 is a deficient number, since it is larger than the sum of its proper divisors (5254182932).

10508365858 is an equidigital number, since it uses as much as digits as its factorization.

10508365858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254182931.

The product of its (nonzero) digits is 1152000, while the sum is 49.

The spelling of 10508365858 in words is "ten billion, five hundred eight million, three hundred sixty-five thousand, eight hundred fifty-eight".