5631636542 has 12 divisors (see below), whose sum is σ = 9826631280. Its totient is φ = 2413558476.

The previous prime is 5631636533. The next prime is 5631636557. The reversal of 5631636542 is 2456361365.

It is a self number, because there is not a number n which added to its sum of digits gives 5631636542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28732742 + ... + 28732937.

It is an arithmetic number, because the mean of its divisors is an integer number (818885940).

Almost surely, 2^5631636542 is an apocalyptic number.

5631636542 is a deficient number, since it is larger than the sum of its proper divisors (4194994738).

5631636542 is a wasteful number, since it uses less digits than its factorization.

5631636542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57465695 (or 57465688 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The square root of 5631636542 is about 75044.2305710439. The cubic root of 5631636542 is about 1779.1457987460.

The spelling of 5631636542 in words is "five billion, six hundred thirty-one million, six hundred thirty-six thousand, five hundred forty-two".