38478016525 has 24 divisors (see below), whose sum is σ = 51505765920. Its totient is φ = 28346619840.

The previous prime is 38478016501. The next prime is 38478016547. The reversal of 38478016525 is 52561087483.

It is a happy number.

It is not a de Polignac number, because 38478016525 - 2²¹ = 38475919373 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5107 + ... + 277456.

It is an arithmetic number, because the mean of its divisors is an integer number (2146073580).

Almost surely, 2^38478016525 is an apocalyptic number.

It is an amenable number.

38478016525 is a deficient number, since it is larger than the sum of its proper divisors (13027749395).

38478016525 is a wasteful number, since it uses less digits than its factorization.

38478016525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283005 (or 283000 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 38478016525 in words is "thirty-eight billion, four hundred seventy-eight million, sixteen thousand, five hundred twenty-five".