61593801378 has 32 divisors (see below), whose sum is σ = 123440965632. Its totient is φ = 20489086800.

The previous prime is 61593801377. The next prime is 61593801403. The reversal of 61593801378 is 87310839516.

61593801378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61593801378.

It is not an unprimeable number, because it can be changed into a prime (61593801377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6395875 + ... + 6405497.

It is an arithmetic number, because the mean of its divisors is an integer number (3857530176).

Almost surely, 2^61593801378 is an apocalyptic number.

61593801378 is an abundant number, since it is smaller than the sum of its proper divisors (61847164254).

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

61593801378 is a wasteful number, since it uses less digits than its factorization.

61593801378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11710.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 61593801378 in words is "sixty-one billion, five hundred ninety-three million, eight hundred one thousand, three hundred seventy-eight".