3428525664 has 48 divisors (see below), whose sum is σ = 9999869040. Its totient is φ = 1142841600.

The previous prime is 3428525647. The next prime is 3428525669. The reversal of 3428525664 is 4665258243.

3428525664 is a `hidden beast` number, since 3 + 4 + 2 + 85 + 2 + 566 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428525669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983237 + ... + 1984964.

It is an arithmetic number, because the mean of its divisors is an integer number (208330605).

Almost surely, 2^3428525664 is an apocalyptic number.

It is an amenable number.

3428525664 is an abundant number, since it is smaller than the sum of its proper divisors (6571343376).

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

3428525664 is a wasteful number, since it uses less digits than its factorization.

3428525664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968220 (or 3968206 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 3428525664 is about 58553.6135861827. The cubic root of 3428525664 is about 1507.8881731015. Note that the first 3 decimals are identical.

The spelling of 3428525664 in words is "three billion, four hundred twenty-eight million, five hundred twenty-five thousand, six hundred sixty-four".