87380156238679 has 2 divisors, whose sum is σ = 87380156238680. Its totient is φ = 87380156238678.

The previous prime is 87380156238643. The next prime is 87380156238691. The reversal of 87380156238679 is 97683265108378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87380156238679 - 2¹¹ = 87380156236631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87380156238079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43690078119339 + 43690078119340.

It is an arithmetic number, because the mean of its divisors is an integer number (43690078119340).

Almost surely, 2^{87380156238679} is an apocalyptic number.

87380156238679 is a deficient number, since it is larger than the sum of its proper divisors (1).

87380156238679 is an equidigital number, since it uses as much as digits as its factorization.

87380156238679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 731566080, while the sum is 73.

The spelling of 87380156238679 in words is "eighty-seven trillion, three hundred eighty billion, one hundred fifty-six million, two hundred thirty-eight thousand, six hundred seventy-nine".