61038838775 has 12 divisors (see below), whose sum is σ = 75762468600. Its totient is φ = 48783130080.

The previous prime is 61038838771. The next prime is 61038838781. The reversal of 61038838775 is 57783883016.

It is not a de Polignac number, because 61038838775 - 2² = 61038838771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61038838775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61038838771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172540 + ... + 1223489.

It is an arithmetic number, because the mean of its divisors is an integer number (6313539050).

Almost surely, 2^61038838775 is an apocalyptic number.

61038838775 is a deficient number, since it is larger than the sum of its proper divisors (14723629825).

61038838775 is a wasteful number, since it uses less digits than its factorization.

61038838775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397058 (or 2397053 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 61038838775 in words is "sixty-one billion, thirty-eight million, eight hundred thirty-eight thousand, seven hundred seventy-five".