1770202172012 has 12 divisors (see below), whose sum is σ = 3173411211096. Its totient is φ = 863513254560.

The previous prime is 1770202171967. The next prime is 1770202172017. The reversal of 1770202172012 is 2102712020771.

It is a super-2 number, since 2×1770202172012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1770202172012.

It is not an unprimeable number, because it can be changed into a prime (1770202172017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5396957678 + ... + 5396958005.

It is an arithmetic number, because the mean of its divisors is an integer number (264450934258).

Almost surely, 2^{1770202172012} is an apocalyptic number.

It is an amenable number.

1770202172012 is a deficient number, since it is larger than the sum of its proper divisors (1403209039084).

1770202172012 is a wasteful number, since it uses less digits than its factorization.

1770202172012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793915728 (or 10793915726 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 32.

Adding to 1770202172012 its reverse (2102712020771), we get a palindrome (3872914192783).

The spelling of 1770202172012 in words is "one trillion, seven hundred seventy billion, two hundred two million, one hundred seventy-two thousand, twelve".