69138354852 has 144 divisors (see below), whose sum is σ = 201565203840. Its totient is φ = 19573456896.

The previous prime is 69138354827. The next prime is 69138354889. The reversal of 69138354852 is 25845383196.

69138354852 is a `hidden beast` number, since 6 + 9 + 13 + 83 + 548 + 5 + 2 = 666.

It is a super-2 number, since 2×69138354852² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12755799 + ... + 12761217.

It is an arithmetic number, because the mean of its divisors is an integer number (1399758360).

Almost surely, 2^69138354852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69138354852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100782601920).

69138354852 is an abundant number, since it is smaller than the sum of its proper divisors (132426848988).

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

69138354852 is a wasteful number, since it uses less digits than its factorization.

69138354852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890 (or 5885 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 69138354852 in words is "sixty-nine billion, one hundred thirty-eight million, three hundred fifty-four thousand, eight hundred fifty-two".