98978662398988 has 24 divisors (see below), whose sum is σ = 187666793555472. Its totient is φ = 45494980253184.

The previous prime is 98978662398943. The next prime is 98978662398991. The reversal of 98978662398988 is 88989326687989.

It is a super-2 number, since 2×98978662398988² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98978662398893 and 98978662398902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16925212945 + ... + 16925218792.

It is an arithmetic number, because the mean of its divisors is an integer number (7819449731478).

Almost surely, 2^{98978662398988} is an apocalyptic number.

It is an amenable number.

98978662398988 is a deficient number, since it is larger than the sum of its proper divisors (88688131156484).

98978662398988 is a wasteful number, since it uses less digits than its factorization.

98978662398988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33850431801 (or 33850431799 counting only the distinct ones).

The product of its digits is 325066162176, while the sum is 100.

The spelling of 98978662398988 in words is "ninety-eight trillion, nine hundred seventy-eight billion, six hundred sixty-two million, three hundred ninety-eight thousand, nine hundred eighty-eight".