7475342537 has 4 divisors (see below), whose sum is σ = 8050368900. Its totient is φ = 6900316176.

The previous prime is 7475342521. The next prime is 7475342543. The reversal of 7475342537 is 7352435747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3053225536 + 4422117001 = 55256^2 + 66499^2 .

It is not a de Polignac number, because 7475342537 - 2⁴ = 7475342521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7475342491 and 7475342500.

It is not an unprimeable number, because it can be changed into a prime (7475342597) 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, 287513162 + ... + 287513187.

It is an arithmetic number, because the mean of its divisors is an integer number (2012592225).

Almost surely, 2^7475342537 is an apocalyptic number.

It is an amenable number.

7475342537 is a deficient number, since it is larger than the sum of its proper divisors (575026363).

7475342537 is a wasteful number, since it uses less digits than its factorization.

7475342537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575026362.

The product of its digits is 2469600, while the sum is 47.

The square root of 7475342537 is about 86460.0632488781. The cubic root of 7475342537 is about 1955.2863387084.

The spelling of 7475342537 in words is "seven billion, four hundred seventy-five million, three hundred forty-two thousand, five hundred thirty-seven".