99378487007 has 2 divisors, whose sum is σ = 99378487008. Its totient is φ = 99378487006.

The previous prime is 99378487003. The next prime is 99378487079. The reversal of 99378487007 is 70078487399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99378487007 - 2² = 99378487003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99378487003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49689243503 + 49689243504.

It is an arithmetic number, because the mean of its divisors is an integer number (49689243504).

Almost surely, 2^99378487007 is an apocalyptic number.

99378487007 is a deficient number, since it is larger than the sum of its proper divisors (1).

99378487007 is an equidigital number, since it uses as much as digits as its factorization.

99378487007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 99378487007 in words is "ninety-nine billion, three hundred seventy-eight million, four hundred eighty-seven thousand, seven".