147987133638 has 8 divisors (see below), whose sum is σ = 295974267288. Its totient is φ = 49329044544.

The previous prime is 147987133631. The next prime is 147987133691. The reversal of 147987133638 is 836331789741.

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

147987133638 is an admirable number.

It is a super-2 number, since 2×147987133638² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147987133631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12332261131 + ... + 12332261142.

It is an arithmetic number, because the mean of its divisors is an integer number (36996783411).

Almost surely, 2^147987133638 is an apocalyptic number.

147987133638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

147987133638 is a wasteful number, since it uses less digits than its factorization.

147987133638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24664522278.

The product of its digits is 18289152, while the sum is 60.

It can be divided in two parts, 147987 and 133638, that added together give a triangular number (281625 = T₇₅₀).

The spelling of 147987133638 in words is "one hundred forty-seven billion, nine hundred eighty-seven million, one hundred thirty-three thousand, six hundred thirty-eight".