3645625542 has 16 divisors (see below), whose sum is σ = 7852116720. Its totient is φ = 1121730912.

The previous prime is 3645625541. The next prime is 3645625553. The reversal of 3645625542 is 2455265463.

It is a super-4 number, since 4×3645625542⁴ (a number of 39 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3645625494 and 3645625503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645625541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23369317 + ... + 23369472.

It is an arithmetic number, because the mean of its divisors is an integer number (490757295).

Almost surely, 2^3645625542 is an apocalyptic number.

3645625542 is an abundant number, since it is smaller than the sum of its proper divisors (4206491178).

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

3645625542 is a wasteful number, since it uses less digits than its factorization.

3645625542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46738807.

The product of its digits is 864000, while the sum is 42.

The square root of 3645625542 is about 60379.0157422262. The cubic root of 3645625542 is about 1539.0663849793.

The spelling of 3645625542 in words is "three billion, six hundred forty-five million, six hundred twenty-five thousand, five hundred forty-two".