61051551000499 has 4 divisors (see below), whose sum is σ = 61127016453720. Its totient is φ = 60976085547280.

The previous prime is 61051551000449. The next prime is 61051551000527. The reversal of 61051551000499 is 99400015515016.

61051551000499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61051551000499 - 2²⁵ = 61051517446067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61051551000449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37732725397 + ... + 37732727014.

It is an arithmetic number, because the mean of its divisors is an integer number (15281754113430).

Almost surely, 2^{61051551000499} is an apocalyptic number.

61051551000499 is a deficient number, since it is larger than the sum of its proper divisors (75465453221).

61051551000499 is an equidigital number, since it uses as much as digits as its factorization.

61051551000499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75465453220.

The product of its (nonzero) digits is 243000, while the sum is 46.

The spelling of 61051551000499 in words is "sixty-one trillion, fifty-one billion, five hundred fifty-one million, four hundred ninety-nine", and thus it is an aban number.