61682809100 has 36 divisors (see below), whose sum is σ = 146020034328. Its totient is φ = 22430112000.

The previous prime is 61682809081. The next prime is 61682809109. The reversal of 61682809100 is 190828616.

61682809100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61682809109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28036541 + ... + 28038740.

Almost surely, 2^61682809100 is an apocalyptic number.

It is an amenable number.

61682809100 is an abundant number, since it is smaller than the sum of its proper divisors (84337225228).

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

61682809100 is a wasteful number, since it uses less digits than its factorization.

61682809100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56075306 (or 56075299 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 61682809100 in words is "sixty-one billion, six hundred eighty-two million, eight hundred nine thousand, one hundred".