61946220470 has 16 divisors (see below), whose sum is σ = 111506036400. Its totient is φ = 24777857184.

The previous prime is 61946220463. The next prime is 61946220481. The reversal of 61946220470 is 7402264916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694964 + ... + 779016.

It is an arithmetic number, because the mean of its divisors is an integer number (6969127275).

Almost surely, 2^61946220470 is an apocalyptic number.

61946220470 is a deficient number, since it is larger than the sum of its proper divisors (49559815930).

61946220470 is a wasteful number, since it uses less digits than its factorization.

61946220470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157759.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 61946220470 in words is "sixty-one billion, nine hundred forty-six million, two hundred twenty thousand, four hundred seventy".