61746235408 has 40 divisors (see below), whose sum is σ = 140548254336. Its totient is φ = 25907510400.

The previous prime is 61746235373. The next prime is 61746235469. The reversal of 61746235408 is 80453264716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13491208 + ... + 13495783.

Almost surely, 2^61746235408 is an apocalyptic number.

It is an amenable number.

61746235408 is an abundant number, since it is smaller than the sum of its proper divisors (78802018928).

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

61746235408 is a wasteful number, since it uses less digits than its factorization.

61746235408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26987023 (or 26987017 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 61746235408 in words is "sixty-one billion, seven hundred forty-six million, two hundred thirty-five thousand, four hundred eight".