61755040104007 has 4 divisors (see below), whose sum is σ = 63191203827400. Its totient is φ = 60318876380616.

The previous prime is 61755040103987. The next prime is 61755040104029. The reversal of 61755040104007 is 70040104055716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61755040104007 - 2¹⁹ = 61755039579719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61755040104097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718081861632 + ... + 718081861717.

It is an arithmetic number, because the mean of its divisors is an integer number (15797800956850).

Almost surely, 2^{61755040104007} is an apocalyptic number.

61755040104007 is a deficient number, since it is larger than the sum of its proper divisors (1436163723393).

61755040104007 is a wasteful number, since it uses less digits than its factorization.

61755040104007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436163723392.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 61755040104007 in words is "sixty-one trillion, seven hundred fifty-five billion, forty million, one hundred four thousand, seven".