61770912418 has 16 divisors (see below), whose sum is σ = 96287212800. Its totient is φ = 29688548400.

The previous prime is 61770912409. The next prime is 61770912433. The reversal of 61770912418 is 81421907716.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 3334068 + ... + 3352543.

It is an arithmetic number, because the mean of its divisors is an integer number (6017950800).

Almost surely, 2^61770912418 is an apocalyptic number.

61770912418 is a deficient number, since it is larger than the sum of its proper divisors (34516300382).

61770912418 is a wasteful number, since it uses less digits than its factorization.

61770912418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686793.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 61770912418 in words is "sixty-one billion, seven hundred seventy million, nine hundred twelve thousand, four hundred eighteen".