61389394260 has 96 divisors (see below), whose sum is σ = 174763008000. Its totient is φ = 16098576000.

The previous prime is 61389394219. The next prime is 61389394267. The reversal of 61389394260 is 6249398316.

61389394260 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 not an unprimeable number, because it can be changed into a prime (61389394267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1163941 + ... + 1215539.

It is an arithmetic number, because the mean of its divisors is an integer number (1820448000).

Almost surely, 2^61389394260 is an apocalyptic number.

61389394260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61389394260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87381504000).

61389394260 is an abundant number, since it is smaller than the sum of its proper divisors (113373613740).

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

61389394260 is a wasteful number, since it uses less digits than its factorization.

61389394260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51941 (or 51939 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 61389394260 in words is "sixty-one billion, three hundred eighty-nine million, three hundred ninety-four thousand, two hundred sixty".