1587878821038 has 8 divisors (see below), whose sum is σ = 3175757642088. Its totient is φ = 529292940344.

The previous prime is 1587878821031. The next prime is 1587878821093. The reversal of 1587878821038 is 8301288787851.

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

1587878821038 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1587878821038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587878821031) 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, 132323235081 + ... + 132323235092.

It is an arithmetic number, because the mean of its divisors is an integer number (396969705261).

Almost surely, 2^{1587878821038} is an apocalyptic number.

1587878821038 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.

1587878821038 is a wasteful number, since it uses less digits than its factorization.

1587878821038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264646470178.

The product of its (nonzero) digits is 48168960, while the sum is 66.

The spelling of 1587878821038 in words is "one trillion, five hundred eighty-seven billion, eight hundred seventy-eight million, eight hundred twenty-one thousand, thirty-eight".