4142656478 has 16 divisors (see below), whose sum is σ = 6286753440. Its totient is φ = 2047094016.

The previous prime is 4142656459. The next prime is 4142656481. The reversal of 4142656478 is 8746562414.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512726 + ... + 520742.

It is an arithmetic number, because the mean of its divisors is an integer number (392922090).

Almost surely, 2^4142656478 is an apocalyptic number.

4142656478 is a deficient number, since it is larger than the sum of its proper divisors (2144096962).

4142656478 is a wasteful number, since it uses less digits than its factorization.

4142656478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011.

The product of its digits is 1290240, while the sum is 47.

The square root of 4142656478 is about 64363.4716123983. The cubic root of 4142656478 is about 1606.0521406212.

The spelling of 4142656478 in words is "four billion, one hundred forty-two million, six hundred fifty-six thousand, four hundred seventy-eight".