4126121067 has 4 divisors (see below), whose sum is σ = 5501494760. Its totient is φ = 2750747376.

The previous prime is 4126121063. The next prime is 4126121081. The reversal of 4126121067 is 7601216214.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4126121067 - 2² = 4126121063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4126121063) 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, 687686842 + ... + 687686847.

It is an arithmetic number, because the mean of its divisors is an integer number (1375373690).

Almost surely, 2^4126121067 is an apocalyptic number.

4126121067 is a deficient number, since it is larger than the sum of its proper divisors (1375373693).

4126121067 is a wasteful number, since it uses less digits than its factorization.

4126121067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375373692.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4126121067 is about 64234.8897951884. The cubic root of 4126121067 is about 1603.9124391468.

The spelling of 4126121067 in words is "four billion, one hundred twenty-six million, one hundred twenty-one thousand, sixty-seven".