10355393947 has 4 divisors (see below), whose sum is σ = 10356514480. Its totient is φ = 10354273416.

The previous prime is 10355393887. The next prime is 10355393959. The reversal of 10355393947 is 74939355301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10355393947 is a prime.

It is a super-3 number, since 3×10355393947³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10355393947.

It is not an unprimeable number, because it can be changed into a prime (10355393987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546288 + ... + 564925.

It is an arithmetic number, because the mean of its divisors is an integer number (2589128620).

Almost surely, 2^10355393947 is an apocalyptic number.

10355393947 is a deficient number, since it is larger than the sum of its proper divisors (1120533).

10355393947 is an equidigital number, since it uses as much as digits as its factorization.

10355393947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120532.

The product of its (nonzero) digits is 1530900, while the sum is 49.

The spelling of 10355393947 in words is "ten billion, three hundred fifty-five million, three hundred ninety-three thousand, nine hundred forty-seven".