961000479999 has 24 divisors (see below), whose sum is σ = 1597060576800. Its totient is φ = 545457601728.

The previous prime is 961000479991. The next prime is 961000480021. The reversal of 961000479999 is 999974000169.

961000479999 is a `hidden beast` number, since 9 + 610 + 0 + 0 + 4 + 7 + 9 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 961000479999 - 2³ = 961000479991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961000479991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51178452 + ... + 51197225.

It is an arithmetic number, because the mean of its divisors is an integer number (66544190700).

Almost surely, 2^961000479999 is an apocalyptic number.

961000479999 is a deficient number, since it is larger than the sum of its proper divisors (636060096801).

961000479999 is a wasteful number, since it uses less digits than its factorization.

961000479999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102375839 (or 102375836 counting only the distinct ones).

The product of its (nonzero) digits is 9920232, while the sum is 63.

The spelling of 961000479999 in words is "nine hundred sixty-one billion, four hundred seventy-nine thousand, nine hundred ninety-nine".