537679531449 has 12 divisors (see below), whose sum is σ = 781791579712. Its totient is φ = 356079159000.

The previous prime is 537679531421. The next prime is 537679531453. The reversal of 537679531449 is 944135976735.

It is a happy number.

537679531449 is a `hidden beast` number, since 5 + 3 + 76 + 7 + 95 + 31 + 449 = 666.

It is not a de Polignac number, because 537679531449 - 2¹⁹ = 537679007161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537679531049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197820397 + ... + 197823114.

Almost surely, 2^537679531449 is an apocalyptic number.

It is an amenable number.

537679531449 is a deficient number, since it is larger than the sum of its proper divisors (244112048263).

537679531449 is a wasteful number, since it uses less digits than its factorization.

537679531449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395643668 (or 395643665 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

It can be divided in two parts, 53767 and 9531449, that added together give a square (9585216 = 3096²).

The spelling of 537679531449 in words is "five hundred thirty-seven billion, six hundred seventy-nine million, five hundred thirty-one thousand, four hundred forty-nine".