988798208736402 has 96 divisors (see below), whose sum is σ = 2352567589287552. Its totient is φ = 310193712393984.

The previous prime is 988798208736389. The next prime is 988798208736433. The reversal of 988798208736402 is 204637802897889.

988798208736402 is a `hidden beast` number, since 9 + 8 + 87 + 9 + 8 + 20 + 87 + 36 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143558128 + ... + 150288164.

It is an arithmetic number, because the mean of its divisors is an integer number (24505912388412).

Almost surely, 2^{988798208736402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988798208736402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176283794643776).

988798208736402 is an abundant number, since it is smaller than the sum of its proper divisors (1363769380551150).

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

988798208736402 is a wasteful number, since it uses less digits than its factorization.

988798208736402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747854 (or 6747842 counting only the distinct ones).

The product of its (nonzero) digits is 4682022912, while the sum is 81.

The spelling of 988798208736402 in words is "nine hundred eighty-eight trillion, seven hundred ninety-eight billion, two hundred eight million, seven hundred thirty-six thousand, four hundred two".