1212646346464 has 24 divisors (see below), whose sum is σ = 2728454280048. Its totient is φ = 519705576960.

The previous prime is 1212646346447. The next prime is 1212646346489. The reversal of 1212646346464 is 4646436462121.

It is a super-2 number, since 2×1212646346464² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 2706799657 + ... + 2706800104.

It is an arithmetic number, because the mean of its divisors is an integer number (113685595002).

Almost surely, 2^{1212646346464} is an apocalyptic number.

1212646346464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1212646346464 is an abundant number, since it is smaller than the sum of its proper divisors (1515807933584).

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

1212646346464 is an equidigital number, since it uses as much as digits as its factorization.

1212646346464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413599778 (or 5413599770 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 49.

The spelling of 1212646346464 in words is "one trillion, two hundred twelve billion, six hundred forty-six million, three hundred forty-six thousand, four hundred sixty-four".