1712921503444 has 12 divisors (see below), whose sum is σ = 2998051375284. Its totient is φ = 856335396224.

The previous prime is 1712921503399. The next prime is 1712921503457. The reversal of 1712921503444 is 4443051292171.

It can be written as a sum of positive squares in 2 ways, for example, as 633791132100 + 1079130371344 = 796110^2 + 1038812^2 .

It is a super-2 number, since 2×1712921503444² (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 1712921503444.

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, 31308127 + ... + 31362790.

It is an arithmetic number, because the mean of its divisors is an integer number (249837614607).

Almost surely, 2^{1712921503444} is an apocalyptic number.

It is an amenable number.

1712921503444 is a deficient number, since it is larger than the sum of its proper divisors (1285129871840).

1712921503444 is a wasteful number, since it uses less digits than its factorization.

1712921503444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62677754 (or 62677752 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 1712921503444 in words is "one trillion, seven hundred twelve billion, nine hundred twenty-one million, five hundred three thousand, four hundred forty-four".