61370602578 has 24 divisors (see below), whose sum is σ = 134791143708. Its totient is φ = 20176636032.

The previous prime is 61370602571. The next prime is 61370602589. The reversal of 61370602578 is 87520607316.

61370602578 is a `hidden beast` number, since 6 + 1 + 3 + 70 + 6 + 0 + 2 + 578 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55600225209 + 5770377369 = 235797^2 + 75963^2 .

It is not an unprimeable number, because it can be changed into a prime (61370602571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23351275 + ... + 23353902.

Almost surely, 2^61370602578 is an apocalyptic number.

61370602578 is an abundant number, since it is smaller than the sum of its proper divisors (73420541130).

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

61370602578 is a wasteful number, since it uses less digits than its factorization.

61370602578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46705258 (or 46705255 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 61370602578 in words is "sixty-one billion, three hundred seventy million, six hundred two thousand, five hundred seventy-eight".