61380408770 has 16 divisors (see below), whose sum is σ = 116299722240. Its totient is φ = 23259944304.

The previous prime is 61380408757. The next prime is 61380408773. The reversal of 61380408770 is 7780408316.

61380408770 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 (61380408773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161527202 + ... + 161527581.

It is an arithmetic number, because the mean of its divisors is an integer number (7268732640).

Almost surely, 2^61380408770 is an apocalyptic number.

61380408770 is a deficient number, since it is larger than the sum of its proper divisors (54919313470).

61380408770 is a wasteful number, since it uses less digits than its factorization.

61380408770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323054809.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 61380408770 in words is "sixty-one billion, three hundred eighty million, four hundred eight thousand, seven hundred seventy".