38961968579525 has 24 divisors (see below), whose sum is σ = 49915711023360. Its totient is φ = 30145554077760.

The previous prime is 38961968579461. The next prime is 38961968579609. The reversal of 38961968579525 is 52597586916983.

It is not a de Polignac number, because 38961968579525 - 2⁶ = 38961968579461 is a prime.

It is a super-3 number, since 3×38961968579525³ (a number of 42 digits) contains 333 as substring.

It is a Curzon number.

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, 125956445 + ... + 126265394.

It is an arithmetic number, because the mean of its divisors is an integer number (2079821292640).

Almost surely, 2^{38961968579525} is an apocalyptic number.

It is an amenable number.

38961968579525 is a deficient number, since it is larger than the sum of its proper divisors (10953742443835).

38961968579525 is a wasteful number, since it uses less digits than its factorization.

38961968579525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252222053 (or 252222048 counting only the distinct ones).

The product of its digits is 8817984000, while the sum is 83.

The spelling of 38961968579525 in words is "thirty-eight trillion, nine hundred sixty-one billion, nine hundred sixty-eight million, five hundred seventy-nine thousand, five hundred twenty-five".