1213244972676 has 135 divisors (see below), whose sum is σ = 3486833794983. Its totient is φ = 367583903280.

The previous prime is 1213244972671. The next prime is 1213244972699. The reversal of 1213244972676 is 6762794423121.

The square root of 1213244972676 is 1101474.

It is a perfect power (a square), and thus also a powerful number.

1213244972676 is a `hidden beast` number, since 1 + 2 + 132 + 449 + 7 + 2 + 67 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1213244972671) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 218089071 + ... + 218094633.

Almost surely, 2^{1213244972676} is an apocalyptic number.

1213244972676 is the 1101474-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213244972676

1213244972676 is an abundant number, since it is smaller than the sum of its proper divisors (2273588822307).

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

1213244972676 is an frugal number, since it uses more digits than its factorization.

1213244972676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11164 (or 5579 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 1213244972676 in words is "one trillion, two hundred thirteen billion, two hundred forty-four million, nine hundred seventy-two thousand, six hundred seventy-six".