3987238277268 has 72 divisors (see below), whose sum is σ = 10617475333920. Its totient is φ = 1258159780800.

The previous prime is 3987238277263. The next prime is 3987238277273. The reversal of 3987238277268 is 8627728327893.

3987238277268 is a `hidden beast` number, since 3 + 98 + 7 + 2 + 3 + 8 + 277 + 268 = 666.

It is an interprime number because it is at equal distance from previous prime (3987238277263) and next prime (3987238277273).

It is a super-2 number, since 2×3987238277268² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3987238277196 and 3987238277205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987238277263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1350430 + ... + 3130197.

Almost surely, 2^{3987238277268} is an apocalyptic number.

3987238277268 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3987238277268 is an abundant number, since it is smaller than the sum of its proper divisors (6630237056652).

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

3987238277268 is a wasteful number, since it uses less digits than its factorization.

3987238277268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481957 (or 4481952 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 72.

The spelling of 3987238277268 in words is "three trillion, nine hundred eighty-seven billion, two hundred thirty-eight million, two hundred seventy-seven thousand, two hundred sixty-eight".