4154256644 has 12 divisors (see below), whose sum is σ = 7270401600. Its totient is φ = 2076999048.

The previous prime is 4154256643. The next prime is 4154256671. The reversal of 4154256644 is 4466524514.

It is not an unprimeable number, because it can be changed into a prime (4154256643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102137 + ... + 136895.

It is an arithmetic number, because the mean of its divisors is an integer number (605866800).

Almost surely, 2^4154256644 is an apocalyptic number.

It is an amenable number.

4154256644 is a deficient number, since it is larger than the sum of its proper divisors (3116144956).

4154256644 is a wasteful number, since it uses less digits than its factorization.

4154256644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64642 (or 64640 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

The square root of 4154256644 is about 64453.5231310128. The cubic root of 4154256644 is about 1607.5498196270.

The spelling of 4154256644 in words is "four billion, one hundred fifty-four million, two hundred fifty-six thousand, six hundred forty-four".