2120974858 has 8 divisors (see below), whose sum is σ = 3201726852. Its totient is φ = 1053732576.

The previous prime is 2120974837. The next prime is 2120974861. The reversal of 2120974858 is 8584790212.

It can be written as a sum of positive squares in 2 ways, for example, as 1917826849 + 203148009 = 43793^2 + 14253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377035 + ... + 3377662.

Almost surely, 2^2120974858 is an apocalyptic number.

2120974858 is a deficient number, since it is larger than the sum of its proper divisors (1080751994).

2120974858 is a wasteful number, since it uses less digits than its factorization.

2120974858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754856.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 2120974858 is about 46054.0427975656. The cubic root of 2120974858 is about 1284.8285353132.

The spelling of 2120974858 in words is "two billion, one hundred twenty million, nine hundred seventy-four thousand, eight hundred fifty-eight".