61755410761 has 8 divisors (see below), whose sum is σ = 67414500000. Its totient is φ = 56103815040.

The previous prime is 61755410747. The next prime is 61755410797. The reversal of 61755410761 is 16701455716.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61755410761 - 2²³ = 61747022153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61755410701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856136 + ... + 1889113.

It is an arithmetic number, because the mean of its divisors is an integer number (8426812500).

Almost surely, 2^61755410761 is an apocalyptic number.

It is an amenable number.

61755410761 is a deficient number, since it is larger than the sum of its proper divisors (5659089239).

61755410761 is a wasteful number, since it uses less digits than its factorization.

61755410761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746759.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 61755410761 in words is "sixty-one billion, seven hundred fifty-five million, four hundred ten thousand, seven hundred sixty-one".