961417628887 has 16 divisors (see below), whose sum is σ = 986339870208. Its totient is φ = 936613238400.

The previous prime is 961417628881. The next prime is 961417628909. The reversal of 961417628887 is 788826714169.

It is a cyclic number.

It is not a de Polignac number, because 961417628887 - 2³⁹ = 411661814999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961417628881) 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, 94039458 + ... + 94049680.

It is an arithmetic number, because the mean of its divisors is an integer number (61646241888).

Almost surely, 2^961417628887 is an apocalyptic number.

961417628887 is a deficient number, since it is larger than the sum of its proper divisors (24922241321).

961417628887 is a wasteful number, since it uses less digits than its factorization.

961417628887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15750.

The product of its digits is 65028096, while the sum is 67.

The spelling of 961417628887 in words is "nine hundred sixty-one billion, four hundred seventeen million, six hundred twenty-eight thousand, eight hundred eighty-seven".