61576887386 has 16 divisors (see below), whose sum is σ = 108965552640. Its totient is φ = 25538801040.

The previous prime is 61576887377. The next prime is 61576887419. The reversal of 61576887386 is 68378867516.

61576887386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 70940681 + ... + 70941548.

It is an arithmetic number, because the mean of its divisors is an integer number (6810347040).

Almost surely, 2^61576887386 is an apocalyptic number.

61576887386 is a deficient number, since it is larger than the sum of its proper divisors (47388665254).

61576887386 is a wasteful number, since it uses less digits than its factorization.

61576887386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141882269.

The product of its digits is 81285120, while the sum is 65.

The spelling of 61576887386 in words is "sixty-one billion, five hundred seventy-six million, eight hundred eighty-seven thousand, three hundred eighty-six".