61755013107 has 24 divisors (see below), whose sum is σ = 93376078848. Its totient is φ = 39280777200.

The previous prime is 61755013097. The next prime is 61755013109. The reversal of 61755013107 is 70131055716.

61755013107 is a `hidden beast` number, since 617 + 5 + 5 + 0 + 1 + 31 + 0 + 7 = 666.

It is not a de Polignac number, because 61755013107 - 2¹⁰ = 61755012083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61755013109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1538953 + ... + 1578570.

It is an arithmetic number, because the mean of its divisors is an integer number (3890669952).

Almost surely, 2^61755013107 is an apocalyptic number.

61755013107 is a deficient number, since it is larger than the sum of its proper divisors (31621065741).

61755013107 is a wasteful number, since it uses less digits than its factorization.

61755013107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117631 (or 3117628 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The spelling of 61755013107 in words is "sixty-one billion, seven hundred fifty-five million, thirteen thousand, one hundred seven".