3988268177156 has 6 divisors (see below), whose sum is σ = 6979469310030. Its totient is φ = 1994134088576.

The previous prime is 3988268177141. The next prime is 3988268177161. The reversal of 3988268177156 is 6517718628893.

It can be written as a sum of positive squares in only one way, i.e., 3877811654656 + 110456522500 = 1969216^2 + 332350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3988268177156.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498533522141 + ... + 498533522148.

It is an arithmetic number, because the mean of its divisors is an integer number (1163244885005).

Almost surely, 2^{3988268177156} is an apocalyptic number.

It is an amenable number.

3988268177156 is a deficient number, since it is larger than the sum of its proper divisors (2991201132874).

3988268177156 is a wasteful number, since it uses less digits than its factorization.

3988268177156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997067044293 (or 997067044291 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 71.

The spelling of 3988268177156 in words is "three trillion, nine hundred eighty-eight billion, two hundred sixty-eight million, one hundred seventy-seven thousand, one hundred fifty-six".