61078765772041 has 16 divisors (see below), whose sum is σ = 64317935174400. Its totient is φ = 57842050147200.

The previous prime is 61078765771997. The next prime is 61078765772083. The reversal of 61078765772041 is 14027756787016.

It is a happy number.

It is not a de Polignac number, because 61078765772041 - 2⁷ = 61078765771913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61078765772441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611465421 + ... + 611565301.

It is an arithmetic number, because the mean of its divisors is an integer number (4019870948400).

Almost surely, 2^{61078765772041} is an apocalyptic number.

It is an amenable number.

61078765772041 is a deficient number, since it is larger than the sum of its proper divisors (3239169402359).

61078765772041 is a wasteful number, since it uses less digits than its factorization.

61078765772041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111840.

The product of its (nonzero) digits is 27659520, while the sum is 61.

The spelling of 61078765772041 in words is "sixty-one trillion, seventy-eight billion, seven hundred sixty-five million, seven hundred seventy-two thousand, forty-one".