2120571856874 has 32 divisors (see below), whose sum is σ = 3243583236096. Its totient is φ = 1039529216880.

The previous prime is 2120571856873. The next prime is 2120571856889. The reversal of 2120571856874 is 4786581750212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2120571856873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229817849 + ... + 229827075.

It is an arithmetic number, because the mean of its divisors is an integer number (101361976128).

Almost surely, 2^{2120571856874} is an apocalyptic number.

2120571856874 is a deficient number, since it is larger than the sum of its proper divisors (1123011379222).

2120571856874 is a wasteful number, since it uses less digits than its factorization.

2120571856874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 2120571856874 in words is "two trillion, one hundred twenty billion, five hundred seventy-one million, eight hundred fifty-six thousand, eight hundred seventy-four".