1920922355005 has 4 divisors (see below), whose sum is σ = 2305106826012. Its totient is φ = 1536737884000.

The previous prime is 1920922354997. The next prime is 1920922355041. The reversal of 1920922355005 is 5005532290291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1027666760121 + 893255594884 = 1013739^2 + 945122^2 .

It is not a de Polignac number, because 1920922355005 - 2³ = 1920922354997 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 192092235496 + ... + 192092235505.

It is an arithmetic number, because the mean of its divisors is an integer number (576276706503).

Almost surely, 2^{1920922355005} is an apocalyptic number.

It is an amenable number.

1920922355005 is a deficient number, since it is larger than the sum of its proper divisors (384184471007).

1920922355005 is an equidigital number, since it uses as much as digits as its factorization.

1920922355005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384184471006.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 1920922355005 in words is "one trillion, nine hundred twenty billion, nine hundred twenty-two million, three hundred fifty-five thousand, five".