38449997625 has 128 divisors (see below), whose sum is σ = 71983941120. Its totient is φ = 18100454400.

The previous prime is 38449997603. The next prime is 38449997627. The reversal of 38449997625 is 52679994483.

It is not a de Polignac number, because 38449997625 - 2⁶ = 38449997561 is a prime.

It is a Curzon number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (38449997627) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10640319 + ... + 10643931.

It is an arithmetic number, because the mean of its divisors is an integer number (562374540).

Almost surely, 2^38449997625 is an apocalyptic number.

It is an amenable number.

38449997625 is a deficient number, since it is larger than the sum of its proper divisors (33533943495).

38449997625 is a wasteful number, since it uses less digits than its factorization.

38449997625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740 (or 3730 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 66.

The spelling of 38449997625 in words is "thirty-eight billion, four hundred forty-nine million, nine hundred ninety-seven thousand, six hundred twenty-five".