133646238310438 has 64 divisors (see below), whose sum is σ = 237199580098560. Its totient is φ = 55257231076992.

The previous prime is 133646238310421. The next prime is 133646238310457. The reversal of 133646238310438 is 834013832646331.

It is a super-2 number, since 2×133646238310438² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3140384256 + ... + 3140426812.

It is an arithmetic number, because the mean of its divisors is an integer number (3706243439040).

Almost surely, 2^{133646238310438} is an apocalyptic number.

133646238310438 is a deficient number, since it is larger than the sum of its proper divisors (103553341788122).

133646238310438 is a wasteful number, since it uses less digits than its factorization.

133646238310438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48661.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 133646238310438 in words is "one hundred thirty-three trillion, six hundred forty-six billion, two hundred thirty-eight million, three hundred ten thousand, four hundred thirty-eight".