98919500251 has 96 divisors (see below), whose sum is σ = 127671828480. Its totient is φ = 75898944000.

The previous prime is 98919500243. The next prime is 98919500419. The reversal of 98919500251 is 15200591989.

It is not a de Polignac number, because 98919500251 - 2³ = 98919500243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98919500195 and 98919500204.

It is not an unprimeable number, because it can be changed into a prime (98919500201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99817366 + ... + 99818356.

It is an arithmetic number, because the mean of its divisors is an integer number (1329914880).

Almost surely, 2^98919500251 is an apocalyptic number.

98919500251 is a deficient number, since it is larger than the sum of its proper divisors (28752328229).

98919500251 is a wasteful number, since it uses less digits than its factorization.

98919500251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 49.

The spelling of 98919500251 in words is "ninety-eight billion, nine hundred nineteen million, five hundred thousand, two hundred fifty-one".