61634844117 has 36 divisors (see below), whose sum is σ = 111836976160. Its totient is φ = 32018096880.

The previous prime is 61634844107. The next prime is 61634844119. The reversal of 61634844117 is 71144843616.

61634844117 is a `hidden beast` number, since 6 + 1 + 634 + 8 + 4 + 4 + 1 + 1 + 7 = 666.

It is not a de Polignac number, because 61634844117 - 2¹¹ = 61634842069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61634844119) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4035067 + ... + 4050312.

Almost surely, 2^61634844117 is an apocalyptic number.

It is an amenable number.

61634844117 is a deficient number, since it is larger than the sum of its proper divisors (50202132043).

61634844117 is a wasteful number, since it uses less digits than its factorization.

61634844117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085414 (or 8085400 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 61634844117 in words is "sixty-one billion, six hundred thirty-four million, eight hundred forty-four thousand, one hundred seventeen".