87389722900787 has 2 divisors, whose sum is σ = 87389722900788. Its totient is φ = 87389722900786.

The previous prime is 87389722900769. The next prime is 87389722900813. The reversal of 87389722900787 is 78700922798378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87389722900787 - 2²² = 87389718706483 is a prime.

It is not a weakly prime, because it can be changed into another prime (87389722980787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43694861450393 + 43694861450394.

It is an arithmetic number, because the mean of its divisors is an integer number (43694861450394).

Almost surely, 2^{87389722900787} is an apocalyptic number.

87389722900787 is a deficient number, since it is larger than the sum of its proper divisors (1).

87389722900787 is an equidigital number, since it uses as much as digits as its factorization.

87389722900787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1194891264, while the sum is 77.

The spelling of 87389722900787 in words is "eighty-seven trillion, three hundred eighty-nine billion, seven hundred twenty-two million, nine hundred thousand, seven hundred eighty-seven".