61115110984 has 8 divisors (see below), whose sum is σ = 114590833110. Its totient is φ = 30557555488.

The previous prime is 61115110963. The next prime is 61115111051. The reversal of 61115110984 is 48901151116.

It can be written as a sum of positive squares in only one way, i.e., 34196146084 + 26918964900 = 184922^2 + 164070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819694429 + ... + 3819694444.

Almost surely, 2^61115110984 is an apocalyptic number.

It is an amenable number.

61115110984 is a deficient number, since it is larger than the sum of its proper divisors (53475722126).

61115110984 is a wasteful number, since it uses less digits than its factorization.

61115110984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639388879 (or 7639388875 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 37.

The spelling of 61115110984 in words is "sixty-one billion, one hundred fifteen million, one hundred ten thousand, nine hundred eighty-four".