9037905828721 has 27 divisors (see below), whose sum is σ = 11556437683833. Its totient is φ = 7042343643720.

The previous prime is 9037905828697. The next prime is 9037905828727. The reversal of 9037905828721 is 1278285097309.

The square root of 9037905828721 is 3006311.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 9037905828721 - 2¹⁷ = 9037905697649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9037905828721.

It is not an unprimeable number, because it can be changed into a prime (9037905828727) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 231466426 + ... + 231505468.

Almost surely, 2^{9037905828721} is an apocalyptic number.

9037905828721 is the 3006311-st square number.

9037905828721 is the 1503156-th centered octagonal number.

It is an amenable number.

9037905828721 is a deficient number, since it is larger than the sum of its proper divisors (2518531855112).

9037905828721 is an frugal number, since it uses more digits than its factorization.

9037905828721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78122 (or 39061 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 9037905828721 in words is "nine trillion, thirty-seven billion, nine hundred five million, eight hundred twenty-eight thousand, seven hundred twenty-one".