4127070921 has 16 divisors (see below), whose sum is σ = 5813313600. Its totient is φ = 2597151168.

The previous prime is 4127070919. The next prime is 4127070929. The reversal of 4127070921 is 1290707214.

It is not a de Polignac number, because 4127070921 - 2¹ = 4127070919 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4127070929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114906 + ... + 146483.

It is an arithmetic number, because the mean of its divisors is an integer number (363332100).

Almost surely, 2^4127070921 is an apocalyptic number.

It is an amenable number.

4127070921 is a deficient number, since it is larger than the sum of its proper divisors (1686242679).

4127070921 is a wasteful number, since it uses less digits than its factorization.

4127070921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261688.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 4127070921 is about 64242.2829684624. The cubic root of 4127070921 is about 1604.0355059636.

The spelling of 4127070921 in words is "four billion, one hundred twenty-seven million, seventy thousand, nine hundred twenty-one".