98578019767 has 2 divisors, whose sum is σ = 98578019768. Its totient is φ = 98578019766.

The previous prime is 98578019669. The next prime is 98578019773. The reversal of 98578019767 is 76791087589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98578019767 - 2¹¹ = 98578017719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98578019797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49289009883 + 49289009884.

It is an arithmetic number, because the mean of its divisors is an integer number (49289009884).

Almost surely, 2^98578019767 is an apocalyptic number.

98578019767 is a deficient number, since it is larger than the sum of its proper divisors (1).

98578019767 is an equidigital number, since it uses as much as digits as its factorization.

98578019767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 67.

The spelling of 98578019767 in words is "ninety-eight billion, five hundred seventy-eight million, nineteen thousand, seven hundred sixty-seven".