947118535653 has 4 divisors (see below), whose sum is σ = 1262824714208. Its totient is φ = 631412357100.

The previous prime is 947118535613. The next prime is 947118535669. The reversal of 947118535653 is 356535811749.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 947118535653 - 2¹⁸ = 947118273509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947118535593 and 947118535602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947118535613) 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, 157853089273 + ... + 157853089278.

It is an arithmetic number, because the mean of its divisors is an integer number (315706178552).

Almost surely, 2^947118535653 is an apocalyptic number.

It is an amenable number.

947118535653 is a deficient number, since it is larger than the sum of its proper divisors (315706178555).

947118535653 is a wasteful number, since it uses less digits than its factorization.

947118535653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315706178554.

The product of its digits is 13608000, while the sum is 57.

The spelling of 947118535653 in words is "nine hundred forty-seven billion, one hundred eighteen million, five hundred thirty-five thousand, six hundred fifty-three".