61474842008 has 8 divisors (see below), whose sum is σ = 115265328780. Its totient is φ = 30737421000.

The previous prime is 61474841963. The next prime is 61474842017. The reversal of 61474842008 is 80024847416.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61474842008² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61474842008.

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 as a sum of consecutive naturals, namely, 3842177618 + ... + 3842177633.

Almost surely, 2^61474842008 is an apocalyptic number.

It is an amenable number.

61474842008 is a deficient number, since it is larger than the sum of its proper divisors (53790486772).

61474842008 is a wasteful number, since it uses less digits than its factorization.

61474842008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684355257 (or 7684355253 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 61474842008 in words is "sixty-one billion, four hundred seventy-four million, eight hundred forty-two thousand, eight".