61783862416 has 40 divisors (see below), whose sum is σ = 127506839040. Its totient is φ = 28900637184.

The previous prime is 61783862363. The next prime is 61783862429. The reversal of 61783862416 is 61426838716.

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, 634656 + ... + 725503.

It is an arithmetic number, because the mean of its divisors is an integer number (3187670976).

Almost surely, 2^61783862416 is an apocalyptic number.

It is an amenable number.

61783862416 is an abundant number, since it is smaller than the sum of its proper divisors (65722976624).

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

61783862416 is a wasteful number, since it uses less digits than its factorization.

61783862416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360351 (or 1360345 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The spelling of 61783862416 in words is "sixty-one billion, seven hundred eighty-three million, eight hundred sixty-two thousand, four hundred sixteen".