4121057628787 has 4 divisors (see below), whose sum is σ = 4495699231416. Its totient is φ = 3746416026160.

The previous prime is 4121057628773. The next prime is 4121057628797. The reversal of 4121057628787 is 7878267501214.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4121057628787 - 2¹¹ = 4121057626739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121057628797) 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, 187320801298 + ... + 187320801319.

It is an arithmetic number, because the mean of its divisors is an integer number (1123924807854).

Almost surely, 2^{4121057628787} is an apocalyptic number.

4121057628787 is a deficient number, since it is larger than the sum of its proper divisors (374641602629).

4121057628787 is a wasteful number, since it uses less digits than its factorization.

4121057628787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374641602628.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 4121057628787 in words is "four trillion, one hundred twenty-one billion, fifty-seven million, six hundred twenty-eight thousand, seven hundred eighty-seven".