9400501981072 has 10 divisors (see below), whose sum is σ = 18213472588358. Its totient is φ = 4700250990528.

The previous prime is 9400501981001. The next prime is 9400501981099. The reversal of 9400501981072 is 2701891050049.

It can be written as a sum of positive squares in only one way, i.e., 9192926976256 + 207575004816 = 3031984^2 + 455604^2 .

It is a super-2 number, since 2×9400501981072² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293765686893 + ... + 293765686924.

Almost surely, 2^{9400501981072} is an apocalyptic number.

It is an amenable number.

9400501981072 is a deficient number, since it is larger than the sum of its proper divisors (8812970607286).

9400501981072 is a wasteful number, since it uses less digits than its factorization.

9400501981072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587531373825 (or 587531373819 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 9400501981072 in words is "nine trillion, four hundred billion, five hundred one million, nine hundred eighty-one thousand, seventy-two".