98919012880 has 40 divisors (see below), whose sum is σ = 235335241152. Its totient is φ = 38647426944.

The previous prime is 98919012851. The next prime is 98919012937. The reversal of 98919012880 is 8821091989.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×98919012880² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14374324 + ... + 14381203.

Almost surely, 2^98919012880 is an apocalyptic number.

It is an amenable number.

98919012880 is an abundant number, since it is smaller than the sum of its proper divisors (136416228272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98919012880 is a wasteful number, since it uses less digits than its factorization.

98919012880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28755583 (or 28755577 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 55.

The spelling of 98919012880 in words is "ninety-eight billion, nine hundred nineteen million, twelve thousand, eight hundred eighty".