53138678202 has 48 divisors (see below), whose sum is σ = 120684852288. Its totient is φ = 16878980160.

The previous prime is 53138678189. The next prime is 53138678209. The reversal of 53138678202 is 20287683135.

53138678202 is a `hidden beast` number, since 531 + 38 + 6 + 7 + 82 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (53138678209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 805518 + ... + 868985.

It is an arithmetic number, because the mean of its divisors is an integer number (2514267756).

Almost surely, 2^53138678202 is an apocalyptic number.

53138678202 is an abundant number, since it is smaller than the sum of its proper divisors (67546174086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53138678202 is a wasteful number, since it uses less digits than its factorization.

53138678202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674595 (or 1674592 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 53138678202 in words is "fifty-three billion, one hundred thirty-eight million, six hundred seventy-eight thousand, two hundred two".