1572763321212 has 12 divisors (see below), whose sum is σ = 3669781082856. Its totient is φ = 524254440400.

The previous prime is 1572763321201. The next prime is 1572763321219. The reversal of 1572763321212 is 2121233672751.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572763321219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65531805039 + ... + 65531805062.

It is an arithmetic number, because the mean of its divisors is an integer number (305815090238).

Almost surely, 2^{1572763321212} is an apocalyptic number.

1572763321212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1572763321212 is an abundant number, since it is smaller than the sum of its proper divisors (2097017761644).

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

1572763321212 is a wasteful number, since it uses less digits than its factorization.

1572763321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131063610108 (or 131063610106 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

Adding to 1572763321212 its reverse (2121233672751), we get a palindrome (3693996993963).

The spelling of 1572763321212 in words is "one trillion, five hundred seventy-two billion, seven hundred sixty-three million, three hundred twenty-one thousand, two hundred twelve".