3807878457485 has 8 divisors (see below), whose sum is σ = 4569822104856. Its totient is φ = 3046057462080.

The previous prime is 3807878457451. The next prime is 3807878457499. The reversal of 3807878457485 is 5847548787083.

It can be written as a sum of positive squares in 4 ways, for example, as 1062872335849 + 2745006121636 = 1030957^2 + 1656806^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3807878457485 - 2⁶ = 3807878457421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30594674 + ... + 30718883.

It is an arithmetic number, because the mean of its divisors is an integer number (571227763107).

Almost surely, 2^{3807878457485} is an apocalyptic number.

It is an amenable number.

3807878457485 is a deficient number, since it is larger than the sum of its proper divisors (761943647371).

3807878457485 is a wasteful number, since it uses less digits than its factorization.

3807878457485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61325983.

The product of its (nonzero) digits is 1685913600, while the sum is 74.

The spelling of 3807878457485 in words is "three trillion, eight hundred seven billion, eight hundred seventy-eight million, four hundred fifty-seven thousand, four hundred eighty-five".