61410145756787 has 4 divisors (see below), whose sum is σ = 61410260928456. Its totient is φ = 61410030585120.

The previous prime is 61410145756747. The next prime is 61410145756789. The reversal of 61410145756787 is 78765754101416.

It is a happy number.

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 61410145756787 - 2²⁴ = 61410128979571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61410145756789) 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, 56782289 + ... + 57853682.

It is an arithmetic number, because the mean of its divisors is an integer number (15352565232114).

Almost surely, 2^{61410145756787} is an apocalyptic number.

61410145756787 is a deficient number, since it is larger than the sum of its proper divisors (115171669).

61410145756787 is a wasteful number, since it uses less digits than its factorization.

61410145756787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115171668.

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 61410145756787 in words is "sixty-one trillion, four hundred ten billion, one hundred forty-five million, seven hundred fifty-six thousand, seven hundred eighty-seven".