3534875820 has 72 divisors (see below), whose sum is σ = 12254240544. Its totient is φ = 807971328.

The previous prime is 3534875809. The next prime is 3534875837. The reversal of 3534875820 is 285784353.

3534875820 is a `hidden beast` number, since 35 + 34 + 8 + 7 + 582 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401469 + ... + 1403988.

Almost surely, 2^3534875820 is an apocalyptic number.

3534875820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3534875820 is an abundant number, since it is smaller than the sum of its proper divisors (8719364724).

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

3534875820 is a wasteful number, since it uses less digits than its factorization.

3534875820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805479 (or 2805474 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 3534875820 is about 59454.8216715852. The cubic root of 3534875820 is about 1523.3208528691.

The spelling of 3534875820 in words is "three billion, five hundred thirty-four million, eight hundred seventy-five thousand, eight hundred twenty".