87515105127623 has 2 divisors, whose sum is σ = 87515105127624. Its totient is φ = 87515105127622.

The previous prime is 87515105127589. The next prime is 87515105127643. The reversal of 87515105127623 is 32672150151578.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87515105127623 - 2⁶ = 87515105127559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87515105127643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43757552563811 + 43757552563812.

It is an arithmetic number, because the mean of its divisors is an integer number (43757552563812).

Almost surely, 2^{87515105127623} is an apocalyptic number.

87515105127623 is a deficient number, since it is larger than the sum of its proper divisors (1).

87515105127623 is an equidigital number, since it uses as much as digits as its factorization.

87515105127623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528000, while the sum is 53.

The spelling of 87515105127623 in words is "eighty-seven trillion, five hundred fifteen billion, one hundred five million, one hundred twenty-seven thousand, six hundred twenty-three".