61277976612418 has 8 divisors (see below), whose sum is σ = 97323845208012. Its totient is φ = 28836694876416.

The previous prime is 61277976612407. The next prime is 61277976612481. The reversal of 61277976612418 is 81421667977216.

61277976612418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61127644385889 + 150332226529 = 7818417^2 + 387727^2 .

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

It is an unprimeable number.

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, 901146714855 + ... + 901146714922.

Almost surely, 2^{61277976612418} is an apocalyptic number.

61277976612418 is a deficient number, since it is larger than the sum of its proper divisors (36045868595594).

61277976612418 is a wasteful number, since it uses less digits than its factorization.

61277976612418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802293429796.

The product of its digits is 85349376, while the sum is 67.

The spelling of 61277976612418 in words is "sixty-one trillion, two hundred seventy-seven billion, nine hundred seventy-six million, six hundred twelve thousand, four hundred eighteen".