3878162451 has 24 divisors (see below), whose sum is σ = 5997972240. Its totient is φ = 2406007296.

The previous prime is 3878162423. The next prime is 3878162459. The reversal of 3878162451 is 1542618783.

3878162451 is a `hidden beast` number, since 38 + 7 + 8 + 162 + 451 = 666.

It is not a de Polignac number, because 3878162451 - 2⁹ = 3878161939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3878162397 and 3878162406.

It is not an unprimeable number, because it can be changed into a prime (3878162459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128785 + ... + 156018.

It is an arithmetic number, because the mean of its divisors is an integer number (249915510).

Almost surely, 2^3878162451 is an apocalyptic number.

3878162451 is a deficient number, since it is larger than the sum of its proper divisors (2119809789).

3878162451 is a wasteful number, since it uses less digits than its factorization.

3878162451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284915 (or 284912 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 3878162451 is about 62274.8942271282. The cubic root of 3878162451 is about 1571.1174987140.

The spelling of 3878162451 in words is "three billion, eight hundred seventy-eight million, one hundred sixty-two thousand, four hundred fifty-one".