7625626537 has 2 divisors, whose sum is σ = 7625626538. Its totient is φ = 7625626536.

The previous prime is 7625626523. The next prime is 7625626571. The reversal of 7625626537 is 7356265267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6701223321 + 924403216 = 81861^2 + 30404^2 .

It is a cyclic number.

It is not a de Polignac number, because 7625626537 - 2²⁷ = 7491408809 is a prime.

It is a super-2 number, since 2×7625626537² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7625626637) 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 as a sum of consecutive naturals, namely, 3812813268 + 3812813269.

It is an arithmetic number, because the mean of its divisors is an integer number (3812813269).

Almost surely, 2^7625626537 is an apocalyptic number.

It is an amenable number.

7625626537 is a deficient number, since it is larger than the sum of its proper divisors (1).

7625626537 is an equidigital number, since it uses as much as digits as its factorization.

7625626537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 49.

The square root of 7625626537 is about 87324.8334495978. The cubic root of 7625626537 is about 1968.3024996076.

The spelling of 7625626537 in words is "seven billion, six hundred twenty-five million, six hundred twenty-six thousand, five hundred thirty-seven".