7638485045 has 4 divisors (see below), whose sum is σ = 9166182060. Its totient is φ = 6110788032.

The previous prime is 7638485021. The next prime is 7638485059. The reversal of 7638485045 is 5405848367.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4183631761 + 3454853284 = 64681^2 + 58778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7638485045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7638484984 and 7638485002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763848500 + ... + 763848509.

It is an arithmetic number, because the mean of its divisors is an integer number (2291545515).

Almost surely, 2^7638485045 is an apocalyptic number.

It is an amenable number.

7638485045 is a deficient number, since it is larger than the sum of its proper divisors (1527697015).

7638485045 is a wasteful number, since it uses less digits than its factorization.

7638485045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527697014.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The square root of 7638485045 is about 87398.4270167375. The cubic root of 7638485045 is about 1969.4082107621.

The spelling of 7638485045 in words is "seven billion, six hundred thirty-eight million, four hundred eighty-five thousand, forty-five".