6888680675554 has 4 divisors (see below), whose sum is σ = 10333021013334. Its totient is φ = 3444340337776.

The previous prime is 6888680675531. The next prime is 6888680675573. The reversal of 6888680675554 is 4555760868886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6881319893529 + 7360782025 = 2623227^2 + 85795^2 .

It is a super-2 number, since 2×6888680675554² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722170168887 + ... + 1722170168890.

Almost surely, 2^{6888680675554} is an apocalyptic number.

6888680675554 is a deficient number, since it is larger than the sum of its proper divisors (3444340337780).

6888680675554 is a wasteful number, since it uses less digits than its factorization.

6888680675554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444340337779.

The product of its (nonzero) digits is 3096576000, while the sum is 76.

The spelling of 6888680675554 in words is "six trillion, eight hundred eighty-eight billion, six hundred eighty million, six hundred seventy-five thousand, five hundred fifty-four".