1920200511534 has 8 divisors (see below), whose sum is σ = 3840401023080. Its totient is φ = 640066837176.

The previous prime is 1920200511533. The next prime is 1920200511557. The reversal of 1920200511534 is 4351150020291.

It is a happy number.

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

1920200511534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1920200511495 and 1920200511504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920200511533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160016709289 + ... + 160016709300.

It is an arithmetic number, because the mean of its divisors is an integer number (480050127885).

Almost surely, 2^{1920200511534} is an apocalyptic number.

1920200511534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1920200511534 is a wasteful number, since it uses less digits than its factorization.

1920200511534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320033418594.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 1920200511534 in words is "one trillion, nine hundred twenty billion, two hundred million, five hundred eleven thousand, five hundred thirty-four".