953978532563 has 16 divisors (see below), whose sum is σ = 1098095980800. Its totient is φ = 811824962400.

The previous prime is 953978532553. The next prime is 953978532673. The reversal of 953978532563 is 365235879359.

It is a cyclic number.

It is not a de Polignac number, because 953978532563 - 2⁴ = 953978532547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 953978532563.

It is not an unprimeable number, because it can be changed into a prime (953978532553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2008028 + ... + 2437238.

It is an arithmetic number, because the mean of its divisors is an integer number (68630998800).

Almost surely, 2^953978532563 is an apocalyptic number.

953978532563 is a deficient number, since it is larger than the sum of its proper divisors (144117448237).

953978532563 is a wasteful number, since it uses less digits than its factorization.

953978532563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431498.

The product of its digits is 183708000, while the sum is 65.

The spelling of 953978532563 in words is "nine hundred fifty-three billion, nine hundred seventy-eight million, five hundred thirty-two thousand, five hundred sixty-three".