75623151137 has 2 divisors, whose sum is σ = 75623151138. Its totient is φ = 75623151136.

The previous prime is 75623151127. The next prime is 75623151173. The reversal of 75623151137 is 73115132657.

Together with next prime (75623151173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51310857361 + 24312293776 = 226519^2 + 155924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75623151137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75623151094 and 75623151103.

It is not a weakly prime, because it can be changed into another prime (75623151127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37811575568 + 37811575569.

It is an arithmetic number, because the mean of its divisors is an integer number (37811575569).

Almost surely, 2^75623151137 is an apocalyptic number.

It is an amenable number.

75623151137 is a deficient number, since it is larger than the sum of its proper divisors (1).

75623151137 is an equidigital number, since it uses as much as digits as its factorization.

75623151137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The spelling of 75623151137 in words is "seventy-five billion, six hundred twenty-three million, one hundred fifty-one thousand, one hundred thirty-seven".