7538149277 has 4 divisors (see below), whose sum is σ = 7548433980. Its totient is φ = 7527864576.

The previous prime is 7538149261. The next prime is 7538149303. The reversal of 7538149277 is 7729418357.

7538149277 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7729418357 = 1489 ⋅5191013.

It can be written as a sum of positive squares in 2 ways, for example, as 6666069316 + 872079961 = 81646^2 + 29531^2 .

It is a cyclic number.

It is not a de Polignac number, because 7538149277 - 2⁴ = 7538149261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538149207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141252 + ... + 5142717.

It is an arithmetic number, because the mean of its divisors is an integer number (1887108495).

Almost surely, 2^7538149277 is an apocalyptic number.

It is an amenable number.

7538149277 is a deficient number, since it is larger than the sum of its proper divisors (10284703).

7538149277 is a wasteful number, since it uses less digits than its factorization.

7538149277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10284702.

The product of its digits is 2963520, while the sum is 53.

The square root of 7538149277 is about 86822.5159564038. The cubic root of 7538149277 is about 1960.7470840927.

The spelling of 7538149277 in words is "seven billion, five hundred thirty-eight million, one hundred forty-nine thousand, two hundred seventy-seven".