61086781436610 has 64 divisors (see below), whose sum is σ = 147347136910080. Its totient is φ = 16207807983360.

The previous prime is 61086781436587. The next prime is 61086781436621. The reversal of 61086781436610 is 1663418768016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7279075 + ... + 13234745.

It is an arithmetic number, because the mean of its divisors is an integer number (2302299014220).

Almost surely, 2^{61086781436610} is an apocalyptic number.

61086781436610 is an abundant number, since it is smaller than the sum of its proper divisors (86260355473470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61086781436610 is a wasteful number, since it uses less digits than its factorization.

61086781436610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957403.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 61086781436610 in words is "sixty-one trillion, eighty-six billion, seven hundred eighty-one million, four hundred thirty-six thousand, six hundred ten".