969447000991 has 16 divisors (see below), whose sum is σ = 1109478915328. Its totient is φ = 829800288000.

The previous prime is 969447000953. The next prime is 969447001001. The reversal of 969447000991 is 199000744969.

It is a cyclic number.

It is not a de Polignac number, because 969447000991 - 2¹³ = 969446992799 is a prime.

It is a super-3 number, since 3×969447000991³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969447000791) 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, 60457711 + ... + 60473743.

It is an arithmetic number, because the mean of its divisors is an integer number (69342432208).

Almost surely, 2^969447000991 is an apocalyptic number.

969447000991 is a deficient number, since it is larger than the sum of its proper divisors (140031914337).

969447000991 is a wasteful number, since it uses less digits than its factorization.

With its successor (969447000992) it forms an eRAP, since the sums of their prime factors are consecutive (27502 and 27503).

969447000991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502.

The product of its (nonzero) digits is 4408992, while the sum is 58.

The spelling of 969447000991 in words is "nine hundred sixty-nine billion, four hundred forty-seven million, nine hundred ninety-one", and thus it is an aban number.