612536716461212 has 24 divisors (see below), whose sum is σ = 1094533643361312. Its totient is φ = 299837888417600.

The previous prime is 612536716461203. The next prime is 612536716461217. The reversal of 612536716461212 is 212164617635216.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612536716461217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133659464 + ... + 3133854927.

It is an arithmetic number, because the mean of its divisors is an integer number (45605568473388).

Almost surely, 2^{612536716461212} is an apocalyptic number.

It is an amenable number.

612536716461212 is a deficient number, since it is larger than the sum of its proper divisors (481996926900100).

612536716461212 is a wasteful number, since it uses less digits than its factorization.

612536716461212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267514909 (or 6267514907 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The spelling of 612536716461212 in words is "six hundred twelve trillion, five hundred thirty-six billion, seven hundred sixteen million, four hundred sixty-one thousand, two hundred twelve".