38815425640688 has 10 divisors (see below), whose sum is σ = 75204887178864. Its totient is φ = 19407712820336.

The previous prime is 38815425640531. The next prime is 38815425640703. The reversal of 38815425640688 is 88604652451883.

It is a super-2 number, since 2×38815425640688² (a number of 28 digits) contains 22 as substring.

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, 1212982051256 + ... + 1212982051287.

Almost surely, 2^{38815425640688} is an apocalyptic number.

It is an amenable number.

38815425640688 is a deficient number, since it is larger than the sum of its proper divisors (36389461538176).

38815425640688 is a wasteful number, since it uses less digits than its factorization.

38815425640688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425964102551 (or 2425964102545 counting only the distinct ones).

The product of its (nonzero) digits is 353894400, while the sum is 68.

The spelling of 38815425640688 in words is "thirty-eight trillion, eight hundred fifteen billion, four hundred twenty-five million, six hundred forty thousand, six hundred eighty-eight".