61634423764776 has 32 divisors (see below), whose sum is σ = 154107439899840. Its totient is φ = 20541957189888.

The previous prime is 61634423764703. The next prime is 61634423764783. The reversal of 61634423764776 is 67746732443616.

It is a happy number.

61634423764776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177994161 + ... + 178340096.

It is an arithmetic number, because the mean of its divisors is an integer number (4815857496870).

Almost surely, 2^{61634423764776} is an apocalyptic number.

It is an amenable number.

61634423764776 is an abundant number, since it is smaller than the sum of its proper divisors (92473016135064).

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

61634423764776 is a wasteful number, since it uses less digits than its factorization.

61634423764776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356341473 (or 356341469 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 66.

The spelling of 61634423764776 in words is "sixty-one trillion, six hundred thirty-four billion, four hundred twenty-three million, seven hundred sixty-four thousand, seven hundred seventy-six".