61403112684 has 18 divisors (see below), whose sum is σ = 155213423820. Its totient is φ = 20467704216.

The previous prime is 61403112653. The next prime is 61403112709. The reversal of 61403112684 is 48621130416.

61403112684 is a `hidden beast` number, since 61 + 403 + 112 + 6 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1705642019 = 61403112684 / (6 + 1 + 4 + 0 + 3 + 1 + 1 + 2 + 6 + 8 + 4).

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 in 5 ways as a sum of consecutive naturals, for example, 852820974 + ... + 852821045.

It is an arithmetic number, because the mean of its divisors is an integer number (8622967990).

Almost surely, 2^61403112684 is an apocalyptic number.

It is an amenable number.

61403112684 is an abundant number, since it is smaller than the sum of its proper divisors (93810311136).

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

61403112684 is a wasteful number, since it uses less digits than its factorization.

61403112684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705642029 (or 1705642024 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 61403112684 in words is "sixty-one billion, four hundred three million, one hundred twelve thousand, six hundred eighty-four".