61347654740 has 48 divisors (see below), whose sum is σ = 130039378560. Its totient is φ = 24309694080.

The previous prime is 61347654691. The next prime is 61347654763. The reversal of 61347654740 is 4745674316.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 983606 + ... + 1044114.

It is an arithmetic number, because the mean of its divisors is an integer number (2709153720).

Almost surely, 2^61347654740 is an apocalyptic number.

It is an amenable number.

61347654740 is an abundant number, since it is smaller than the sum of its proper divisors (68691723820).

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

61347654740 is a wasteful number, since it uses less digits than its factorization.

61347654740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60992 (or 60990 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 61347654740 in words is "sixty-one billion, three hundred forty-seven million, six hundred fifty-four thousand, seven hundred forty".