5634640158 has 32 divisors (see below), whose sum is σ = 12891065856. Its totient is φ = 1608411168.

The previous prime is 5634640153. The next prime is 5634640163. The reversal of 5634640158 is 8510464365.

It is an interprime number because it is at equal distance from previous prime (5634640153) and next prime (5634640163).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5634640153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15466 + ... + 107277.

It is an arithmetic number, because the mean of its divisors is an integer number (402845808).

Almost surely, 2^5634640158 is an apocalyptic number.

5634640158 is an abundant number, since it is smaller than the sum of its proper divisors (7256425698).

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

5634640158 is a wasteful number, since it uses less digits than its factorization.

5634640158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123848.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 5634640158 is about 75064.2402079712. The cubic root of 5634640158 is about 1779.4620431735.

The spelling of 5634640158 in words is "five billion, six hundred thirty-four million, six hundred forty thousand, one hundred fifty-eight".