61125627812 has 12 divisors (see below), whose sum is σ = 107812131840. Its totient is φ = 30322161576.

The previous prime is 61125627779. The next prime is 61125627881. The reversal of 61125627812 is 21872652116.

It is a super-2 number, since 2×61125627812² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61125627812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60162512 + ... + 60163527.

It is an arithmetic number, because the mean of its divisors is an integer number (8984344320).

Almost surely, 2^61125627812 is an apocalyptic number.

It is an amenable number.

61125627812 is a deficient number, since it is larger than the sum of its proper divisors (46686504028).

61125627812 is a wasteful number, since it uses less digits than its factorization.

61125627812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120326170 (or 120326168 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The spelling of 61125627812 in words is "sixty-one billion, one hundred twenty-five million, six hundred twenty-seven thousand, eight hundred twelve".