53406645238 has 8 divisors (see below), whose sum is σ = 80250267240. Its totient is φ = 26656556160.

The previous prime is 53406645209. The next prime is 53406645277. The reversal of 53406645238 is 83254660435.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 23381803 + ... + 23384086.

It is an arithmetic number, because the mean of its divisors is an integer number (10031283405).

Almost surely, 2^53406645238 is an apocalyptic number.

53406645238 is a deficient number, since it is larger than the sum of its proper divisors (26843622002).

53406645238 is a wasteful number, since it uses less digits than its factorization.

53406645238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46766462.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 53406645238 in words is "fifty-three billion, four hundred six million, six hundred forty-five thousand, two hundred thirty-eight".