61425372206 has 32 divisors (see below), whose sum is σ = 100826546688. Its totient is φ = 27833984640.

The previous prime is 61425372199. The next prime is 61425372221. The reversal of 61425372206 is 60227352416.

It is a self number, because there is not a number n which added to its sum of digits gives 61425372206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20984315 + ... + 20987241.

It is an arithmetic number, because the mean of its divisors is an integer number (3150829584).

Almost surely, 2^61425372206 is an apocalyptic number.

61425372206 is a deficient number, since it is larger than the sum of its proper divisors (39401174482).

61425372206 is a wasteful number, since it uses less digits than its factorization.

61425372206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 61425372206 in words is "sixty-one billion, four hundred twenty-five million, three hundred seventy-two thousand, two hundred six".