7537731813049 has 9 divisors (see below), whose sum is σ = 7555192244197. Its totient is φ = 7520311659964.

The previous prime is 7537731813041. The next prime is 7537731813083. The reversal of 7537731813049 is 9403181377357.

It is a happy number.

The square root of 7537731813049 is 2745493.

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

It is not a de Polignac number, because 7537731813049 - 2³ = 7537731813041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7537731812984 and 7537731813002.

It is not an unprimeable number, because it can be changed into a prime (7537731813041) 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, 1282142292 + ... + 1282148170.

Almost surely, 2^{7537731813049} is an apocalyptic number.

7537731813049 is the 2745493-rd square number.

7537731813049 is the 1372747-th centered octagonal number.

It is an amenable number.

7537731813049 is a deficient number, since it is larger than the sum of its proper divisors (17460431148).

7537731813049 is an frugal number, since it uses more digits than its factorization.

7537731813049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12692 (or 6346 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 7537731813049 in words is "seven trillion, five hundred thirty-seven billion, seven hundred thirty-one million, eight hundred thirteen thousand, forty-nine".