2194857961632 has 240 divisors, whose sum is σ = 7410256584192. Its totient is φ = 624289006080.

The previous prime is 2194857961631. The next prime is 2194857961643. The reversal of 2194857961632 is 2361697584912.

2194857961632 is a `hidden beast` number, since 2 + 1 + 9 + 4 + 8 + 5 + 7 + 9 + 616 + 3 + 2 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2194857961632.

It is not an unprimeable number, because it can be changed into a prime (2194857961631) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3774882 + ... + 4317342.

Almost surely, 2^{2194857961632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2194857961632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3705128292096).

2194857961632 is an abundant number, since it is smaller than the sum of its proper divisors (5215398622560).

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

2194857961632 is a wasteful number, since it uses less digits than its factorization.

2194857961632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542713 (or 542696 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 2194857961632 in words is "two trillion, one hundred ninety-four billion, eight hundred fifty-seven million, nine hundred sixty-one thousand, six hundred thirty-two".