61438620882 has 16 divisors (see below), whose sum is σ = 123366795552. Its totient is φ = 20397948000.

The previous prime is 61438620871. The next prime is 61438620883. The reversal of 61438620882 is 28802683416.

61438620882 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 (61438620883) 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, 20396443 + ... + 20399454.

It is an arithmetic number, because the mean of its divisors is an integer number (7710424722).

Almost surely, 2^61438620882 is an apocalyptic number.

61438620882 is an abundant number, since it is smaller than the sum of its proper divisors (61928174670).

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

61438620882 is a wasteful number, since it uses less digits than its factorization.

61438620882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40796153.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 61438620882 in words is "sixty-one billion, four hundred thirty-eight million, six hundred twenty thousand, eight hundred eighty-two".