4139101978 has 16 divisors (see below), whose sum is σ = 6774878880. Its totient is φ = 1880909200.

The previous prime is 4139101963. The next prime is 4139102003. The reversal of 4139101978 is 8791019314.

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, 67008 + ... + 112996.

It is an arithmetic number, because the mean of its divisors is an integer number (423429930).

Almost surely, 2^4139101978 is an apocalyptic number.

4139101978 is a deficient number, since it is larger than the sum of its proper divisors (2635776902).

4139101978 is a wasteful number, since it uses less digits than its factorization.

4139101978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50093.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 4139101978 is about 64335.8529748382. The cubic root of 4139101978 is about 1605.5926652514.

The spelling of 4139101978 in words is "four billion, one hundred thirty-nine million, one hundred one thousand, nine hundred seventy-eight".