61291583106 has 32 divisors (see below), whose sum is σ = 132084425088. Its totient is φ = 18848693760.

The previous prime is 61291583083. The next prime is 61291583117. The reversal of 61291583106 is 60138519216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68655 + ... + 356786.

It is an arithmetic number, because the mean of its divisors is an integer number (4127638284).

Almost surely, 2^61291583106 is an apocalyptic number.

61291583106 is an abundant number, since it is smaller than the sum of its proper divisors (70792841982).

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

61291583106 is a wasteful number, since it uses less digits than its factorization.

61291583106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427306.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 61291583106 in words is "sixty-one billion, two hundred ninety-one million, five hundred eighty-three thousand, one hundred six".