1009990503752 has 8 divisors (see below), whose sum is σ = 1893732194550. Its totient is φ = 504995251872.

The previous prime is 1009990503733. The next prime is 1009990503757. The reversal of 1009990503752 is 2573050999001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 738784944676 + 271205559076 = 859526^2 + 520774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1009990503752.

It is not an unprimeable number, because it can be changed into a prime (1009990503757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63124406477 + ... + 63124406492.

Almost surely, 2^{1009990503752} is an apocalyptic number.

It is an amenable number.

1009990503752 is a deficient number, since it is larger than the sum of its proper divisors (883741690798).

1009990503752 is a wasteful number, since it uses less digits than its factorization.

1009990503752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126248812975 (or 126248812971 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 50.

The spelling of 1009990503752 in words is "one trillion, nine billion, nine hundred ninety million, five hundred three thousand, seven hundred fifty-two".