1920775011 has 16 divisors (see below), whose sum is σ = 2737566720. Its totient is φ = 1194966080.

The previous prime is 1920774967. The next prime is 1920775027. The reversal of 1920775011 is 1105770291.

It is a cyclic number.

It is not a de Polignac number, because 1920775011 - 2²² = 1916580707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1920775091) 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, 336651 + ... + 342308.

It is an arithmetic number, because the mean of its divisors is an integer number (171097920).

Almost surely, 2^1920775011 is an apocalyptic number.

1920775011 is a deficient number, since it is larger than the sum of its proper divisors (816791709).

1920775011 is a wasteful number, since it uses less digits than its factorization.

1920775011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679026.

The product of its (nonzero) digits is 4410, while the sum is 33.

The square root of 1920775011 is about 43826.6472708100. The cubic root of 1920775011 is about 1243.0602117863.

The spelling of 1920775011 in words is "one billion, nine hundred twenty million, seven hundred seventy-five thousand, eleven".