961809610452 has 48 divisors (see below), whose sum is σ = 2260916378112. Its totient is φ = 318224465280.

The previous prime is 961809610451. The next prime is 961809610471. The reversal of 961809610452 is 254016908169.

It is a junction number, because it is equal to n+sod(n) for n = 961809610395 and 961809610404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961809610451) 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, 878502 + ... + 1641762.

It is an arithmetic number, because the mean of its divisors is an integer number (47102424544).

Almost surely, 2^961809610452 is an apocalyptic number.

It is an amenable number.

961809610452 is an abundant number, since it is smaller than the sum of its proper divisors (1299106767660).

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

961809610452 is a wasteful number, since it uses less digits than its factorization.

961809610452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764048 (or 764046 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 961809610452 in words is "nine hundred sixty-one billion, eight hundred nine million, six hundred ten thousand, four hundred fifty-two".