38428872577515 has 128 divisors (see below), whose sum is σ = 79903233146880. Its totient is φ = 17156841641856.

The previous prime is 38428872577493. The next prime is 38428872577523. The reversal of 38428872577515 is 51577527882483.

38428872577515 is a `hidden beast` number, since 3 + 8 + 4 + 2 + 8 + 87 + 25 + 7 + 7 + 515 = 666.

It is not a de Polignac number, because 38428872577515 - 2⁹ = 38428872577003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 360094654 + ... + 360201356.

It is an arithmetic number, because the mean of its divisors is an integer number (624244008960).

Almost surely, 2^{38428872577515} is an apocalyptic number.

38428872577515 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38428872577515 is an abundant number, since it is smaller than the sum of its proper divisors (41474360569365).

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

38428872577515 is a wasteful number, since it uses less digits than its factorization.

38428872577515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115630 (or 115624 counting only the distinct ones).

The product of its digits is 1053696000, while the sum is 72.

The spelling of 38428872577515 in words is "thirty-eight trillion, four hundred twenty-eight billion, eight hundred seventy-two million, five hundred seventy-seven thousand, five hundred fifteen".