133457847634 has 12 divisors (see below), whose sum is σ = 207327800394. Its totient is φ = 64427925632.

The previous prime is 133457847623. The next prime is 133457847637. The reversal of 133457847634 is 436748754331.

It can be written as a sum of positive squares in 3 ways, for example, as 90362163609 + 43095684025 = 300603^2 + 207595^2 .

It is not an unprimeable number, because it can be changed into a prime (133457847637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39670687 + ... + 39674050.

Almost surely, 2^133457847634 is an apocalyptic number.

133457847634 is a deficient number, since it is larger than the sum of its proper divisors (73869952760).

133457847634 is an equidigital number, since it uses as much as digits as its factorization.

133457847634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79344797 (or 79344768 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 55.

The spelling of 133457847634 in words is "one hundred thirty-three billion, four hundred fifty-seven million, eight hundred forty-seven thousand, six hundred thirty-four".