961490169636 has 24 divisors (see below), whose sum is σ = 2243599896384. Its totient is φ = 320479175520.

The previous prime is 961490169623. The next prime is 961490169667. The reversal of 961490169636 is 636961094169.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 961490169636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964200 + ... + 2404383.

It is an arithmetic number, because the mean of its divisors is an integer number (93483329016).

Almost surely, 2^961490169636 is an apocalyptic number.

It is an amenable number.

961490169636 is an abundant number, since it is smaller than the sum of its proper divisors (1282109726748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961490169636 is a wasteful number, since it uses less digits than its factorization.

961490169636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386931 (or 4386929 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 60.

The spelling of 961490169636 in words is "nine hundred sixty-one billion, four hundred ninety million, one hundred sixty-nine thousand, six hundred thirty-six".