1283985100672 has 32 divisors (see below), whose sum is σ = 2557990965600. Its totient is φ = 641979525120.

The previous prime is 1283985100597. The next prime is 1283985100733. The reversal of 1283985100672 is 2760015893821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 10661529 + ... + 10781287.

It is an arithmetic number, because the mean of its divisors is an integer number (79937217675).

Almost surely, 2^{1283985100672} is an apocalyptic number.

It is an amenable number.

1283985100672 is a deficient number, since it is larger than the sum of its proper divisors (1274005864928).

1283985100672 is an equidigital number, since it uses as much as digits as its factorization.

1283985100672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203534 (or 203522 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 1283985100672 in words is "one trillion, two hundred eighty-three billion, nine hundred eighty-five million, one hundred thousand, six hundred seventy-two".