3534784781875 has 10 divisors (see below), whose sum is σ = 4417067064212. Its totient is φ = 2827827825000.

The previous prime is 3534784781839. The next prime is 3534784781881. The reversal of 3534784781875 is 5781874874353.

It is a happy number.

It is not a de Polignac number, because 3534784781875 - 2²⁷ = 3534650564147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2827827201 + ... + 2827828450.

Almost surely, 2^{3534784781875} is an apocalyptic number.

3534784781875 is a deficient number, since it is larger than the sum of its proper divisors (882282282337).

3534784781875 is an frugal number, since it uses more digits than its factorization.

3534784781875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655655671 (or 5655655656 counting only the distinct ones).

The product of its digits is 632217600, while the sum is 70.

The spelling of 3534784781875 in words is "three trillion, five hundred thirty-four billion, seven hundred eighty-four million, seven hundred eighty-one thousand, eight hundred seventy-five".