61693090599 has 64 divisors (see below), whose sum is σ = 99376422912. Its totient is φ = 33310569600.

The previous prime is 61693090597. The next prime is 61693090633. The reversal of 61693090599 is 99509039616.

It is not a de Polignac number, because 61693090599 - 2¹ = 61693090597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61693090597) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3687844 + ... + 3704534.

It is an arithmetic number, because the mean of its divisors is an integer number (1552756608).

Almost surely, 2^61693090599 is an apocalyptic number.

61693090599 is a deficient number, since it is larger than the sum of its proper divisors (37683332313).

61693090599 is a wasteful number, since it uses less digits than its factorization.

61693090599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16876.

The product of its (nonzero) digits is 3542940, while the sum is 57.

The spelling of 61693090599 in words is "sixty-one billion, six hundred ninety-three million, ninety thousand, five hundred ninety-nine".