961031505669 has 8 divisors (see below), whose sum is σ = 1281491273280. Its totient is φ = 640629704256.

The previous prime is 961031505653. The next prime is 961031505671. The reversal of 961031505669 is 966505130169.

It is a happy number.

961031505669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 961031505669 - 2⁴ = 961031505653 is a prime.

It is a super-2 number, since 2×961031505669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961031505619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14452849 + ... + 14519190.

It is an arithmetic number, because the mean of its divisors is an integer number (160186409160).

Almost surely, 2^961031505669 is an apocalyptic number.

It is an amenable number.

961031505669 is a deficient number, since it is larger than the sum of its proper divisors (320459767611).

961031505669 is a wasteful number, since it uses less digits than its factorization.

961031505669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28983099.

The product of its (nonzero) digits is 1312200, while the sum is 51.

The spelling of 961031505669 in words is "nine hundred sixty-one billion, thirty-one million, five hundred five thousand, six hundred sixty-nine".