2173827687704 has 8 divisors (see below), whose sum is σ = 4075926914460. Its totient is φ = 1086913843848.

The previous prime is 2173827687677. The next prime is 2173827687737. The reversal of 2173827687704 is 4077867283712.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135864230474 + ... + 135864230489.

Almost surely, 2^{2173827687704} is an apocalyptic number.

It is an amenable number.

2173827687704 is a deficient number, since it is larger than the sum of its proper divisors (1902099226756).

2173827687704 is a wasteful number, since it uses less digits than its factorization.

2173827687704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271728460969 (or 271728460965 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 62.

The spelling of 2173827687704 in words is "two trillion, one hundred seventy-three billion, eight hundred twenty-seven million, six hundred eighty-seven thousand, seven hundred four".