61030188075 has 12 divisors (see below), whose sum is σ = 100903244408. Its totient is φ = 32549433600.

The previous prime is 61030188067. The next prime is 61030188083. The reversal of 61030188075 is 57088103016.

It is an interprime number because it is at equal distance from previous prime (61030188067) and next prime (61030188083).

It is not a de Polignac number, because 61030188075 - 2³ = 61030188067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406867846 + ... + 406867995.

Almost surely, 2^61030188075 is an apocalyptic number.

61030188075 is a deficient number, since it is larger than the sum of its proper divisors (39873056333).

61030188075 is a wasteful number, since it uses less digits than its factorization.

61030188075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813735854 (or 813735849 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 61030188075 in words is "sixty-one billion, thirty million, one hundred eighty-eight thousand, seventy-five".