4538626838407 has 4 divisors (see below), whose sum is σ = 4539400429896. Its totient is φ = 4537853246920.

The previous prime is 4538626838401. The next prime is 4538626838413. The reversal of 4538626838407 is 7048386268354.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4538626838401) and next prime (4538626838413).

It is a cyclic number.

It is not a de Polignac number, because 4538626838407 - 2⁷ = 4538626838279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538626838401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386786944 + ... + 386798677.

It is an arithmetic number, because the mean of its divisors is an integer number (1134850107474).

Almost surely, 2^{4538626838407} is an apocalyptic number.

4538626838407 is a deficient number, since it is larger than the sum of its proper divisors (773591489).

4538626838407 is an equidigital number, since it uses as much as digits as its factorization.

4538626838407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773591488.

The product of its (nonzero) digits is 185794560, while the sum is 64.

The spelling of 4538626838407 in words is "four trillion, five hundred thirty-eight billion, six hundred twenty-six million, eight hundred thirty-eight thousand, four hundred seven".