1212651642504 has 32 divisors (see below), whose sum is σ = 3053439396000. Its totient is φ = 401309175552.

The previous prime is 1212651642493. The next prime is 1212651642509. The reversal of 1212651642504 is 4052461562121.

It is not an unprimeable number, because it can be changed into a prime (1212651642509) 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, 181749009 + ... + 181755680.

It is an arithmetic number, because the mean of its divisors is an integer number (95419981125).

Almost surely, 2^{1212651642504} is an apocalyptic number.

It is an amenable number.

1212651642504 is an abundant number, since it is smaller than the sum of its proper divisors (1840787753496).

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

1212651642504 is a wasteful number, since it uses less digits than its factorization.

1212651642504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363504837 (or 363504833 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 1212651642504 in words is "one trillion, two hundred twelve billion, six hundred fifty-one million, six hundred forty-two thousand, five hundred four".