98778219780 has 24 divisors (see below), whose sum is σ = 276579015552. Its totient is φ = 26340858592.

The previous prime is 98778219763. The next prime is 98778219781. The reversal of 98778219780 is 8791287789.

98778219780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×98778219780³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (98778219781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823151772 + ... + 823151891.

It is an arithmetic number, because the mean of its divisors is an integer number (11524125648).

Almost surely, 2^98778219780 is an apocalyptic number.

It is an amenable number.

98778219780 is an abundant number, since it is smaller than the sum of its proper divisors (177800795772).

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

98778219780 is a wasteful number, since it uses less digits than its factorization.

98778219780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646303675 (or 1646303673 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 66.

The spelling of 98778219780 in words is "ninety-eight billion, seven hundred seventy-eight million, two hundred nineteen thousand, seven hundred eighty".