61070829940 has 24 divisors (see below), whose sum is σ = 129447333792. Its totient is φ = 24200028960.

The previous prime is 61070829913. The next prime is 61070829973. The reversal of 61070829940 is 4992807016.

61070829940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14266746 + ... + 14271025.

It is an arithmetic number, because the mean of its divisors is an integer number (5393638908).

Almost surely, 2^61070829940 is an apocalyptic number.

It is an amenable number.

61070829940 is an abundant number, since it is smaller than the sum of its proper divisors (68376503852).

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

61070829940 is a wasteful number, since it uses less digits than its factorization.

61070829940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537887 (or 28537885 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 61070829940 in words is "sixty-one billion, seventy million, eight hundred twenty-nine thousand, nine hundred forty".