1072817700012 has 36 divisors (see below), whose sum is σ = 2712432014656. Its totient is φ = 357528457440.

The previous prime is 1072817699999. The next prime is 1072817700013. The reversal of 1072817700012 is 2100077182701.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1072817700012.

It is not an unprimeable number, because it can be changed into a prime (1072817700013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3058108 + ... + 3390819.

Almost surely, 2^{1072817700012} is an apocalyptic number.

1072817700012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1072817700012 is an abundant number, since it is smaller than the sum of its proper divisors (1639614314644).

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

1072817700012 is a wasteful number, since it uses less digits than its factorization.

1072817700012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453558 (or 6453553 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 36.

The spelling of 1072817700012 in words is "one trillion, seventy-two billion, eight hundred seventeen million, seven hundred thousand, twelve".