98994488777 has 4 divisors (see below), whose sum is σ = 99041924736. Its totient is φ = 98947052820.

The previous prime is 98994488767. The next prime is 98994488821. The reversal of 98994488777 is 77788449989.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77788449989 = 105863 ⋅734803.

It is a cyclic number.

It is not a de Polignac number, because 98994488777 - 2⁶ = 98994488713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98994488767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23714849 + ... + 23719022.

It is an arithmetic number, because the mean of its divisors is an integer number (24760481184).

Almost surely, 2^98994488777 is an apocalyptic number.

It is an amenable number.

98994488777 is a deficient number, since it is larger than the sum of its proper divisors (47435959).

98994488777 is a wasteful number, since it uses less digits than its factorization.

98994488777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47435958.

The product of its digits is 2048385024, while the sum is 80.

The spelling of 98994488777 in words is "ninety-eight billion, nine hundred ninety-four million, four hundred eighty-eight thousand, seven hundred seventy-seven".