61375584668 has 24 divisors (see below), whose sum is σ = 108147770640. Its totient is φ = 30476684160.

The previous prime is 61375584661. The next prime is 61375584703. The reversal of 61375584668 is 86648557316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61375584661) 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, 477680 + ... + 592392.

It is an arithmetic number, because the mean of its divisors is an integer number (4506157110).

Almost surely, 2^61375584668 is an apocalyptic number.

It is an amenable number.

61375584668 is a deficient number, since it is larger than the sum of its proper divisors (46772185972).

61375584668 is a wasteful number, since it uses less digits than its factorization.

61375584668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115637 (or 115635 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 59.

The spelling of 61375584668 in words is "sixty-one billion, three hundred seventy-five million, five hundred eighty-four thousand, six hundred sixty-eight".