537859425321 has 9 divisors (see below), whose sum is σ = 776911236829. Its totient is φ = 358571483436.

The previous prime is 537859425319. The next prime is 537859425331. The reversal of 537859425321 is 123524958735.

The square root of 537859425321 is 733389.

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

537859425321 is a `hidden beast` number, since 5 + 3 + 7 + 8 + 594 + 25 + 3 + 21 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 537859425321 - 2¹ = 537859425319 is a prime.

It is a super-2 number, since 2×537859425321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537859425331) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2077936 + ... + 2322398.

Almost surely, 2^537859425321 is an apocalyptic number.

537859425321 is the 733389-th square number.

537859425321 is the 366695-th centered octagonal number.

It is an amenable number.

537859425321 is a deficient number, since it is larger than the sum of its proper divisors (239051811508).

537859425321 is an frugal number, since it uses more digits than its factorization.

537859425321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488932 (or 244466 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 537859425321 in words is "five hundred thirty-seven billion, eight hundred fifty-nine million, four hundred twenty-five thousand, three hundred twenty-one".