1920504878223 has 16 divisors (see below), whose sum is σ = 2695611780480. Its totient is φ = 1212875597664.

The previous prime is 1920504878221. The next prime is 1920504878239. The reversal of 1920504878223 is 3228784050291.

It is not a de Polignac number, because 1920504878223 - 2¹ = 1920504878221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920504878221) 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, 100461 + ... + 1962422.

It is an arithmetic number, because the mean of its divisors is an integer number (168475736280).

Almost surely, 2^{1920504878223} is an apocalyptic number.

1920504878223 is a deficient number, since it is larger than the sum of its proper divisors (775106902257).

1920504878223 is a wasteful number, since it uses less digits than its factorization.

1920504878223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079238.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 1920504878223 in words is "one trillion, nine hundred twenty billion, five hundred four million, eight hundred seventy-eight thousand, two hundred twenty-three".