6988788788995 has 64 divisors (see below), whose sum is σ = 9510359040000. Its totient is φ = 4894330821120.

The previous prime is 6988788788957. The next prime is 6988788788999. The reversal of 6988788788995 is 5998878878896.

It is not a de Polignac number, because 6988788788995 - 2⁷ = 6988788788867 is a prime.

It is a super-2 number, since 2×6988788788995² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6988788788995.

It is not an unprimeable number, because it can be changed into a prime (6988788788999) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89562006 + ... + 89640004.

It is an arithmetic number, because the mean of its divisors is an integer number (148599360000).

Almost surely, 2^{6988788788995} is an apocalyptic number.

6988788788995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6988788788995 is a deficient number, since it is larger than the sum of its proper divisors (2521570251005).

6988788788995 is a wasteful number, since it uses less digits than its factorization.

6988788788995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78940.

The product of its digits is 280921374720, while the sum is 100.

The spelling of 6988788788995 in words is "six trillion, nine hundred eighty-eight billion, seven hundred eighty-eight million, seven hundred eighty-eight thousand, nine hundred ninety-five".