61758660001 has 32 divisors (see below), whose sum is σ = 69082599168. Its totient is φ = 54948741120.

The previous prime is 61758659987. The next prime is 61758660017. The reversal of 61758660001 is 10006685716.

It is a cyclic number.

It is not a de Polignac number, because 61758660001 - 2⁹ = 61758659489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61758660031) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5214156 + ... + 5225986.

It is an arithmetic number, because the mean of its divisors is an integer number (2158831224).

Almost surely, 2^61758660001 is an apocalyptic number.

It is an amenable number.

61758660001 is a deficient number, since it is larger than the sum of its proper divisors (7323939167).

61758660001 is a wasteful number, since it uses less digits than its factorization.

61758660001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 61758660001 in words is "sixty-one billion, seven hundred fifty-eight million, six hundred sixty thousand, one".