1587438348811 has 8 divisors (see below), whose sum is σ = 1814324658944. Its totient is φ = 1360579389480.

The previous prime is 1587438348791. The next prime is 1587438348857. The reversal of 1587438348811 is 1188438347851.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1587438348811 - 2¹³ = 1587438340619 is a prime.

It is a super-2 number, since 2×1587438348811² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1587438348811.

It is not an unprimeable number, because it can be changed into a prime (1587438348211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6713175 + ... + 6945616.

It is an arithmetic number, because the mean of its divisors is an integer number (226790582368).

Almost surely, 2^{1587438348811} is an apocalyptic number.

1587438348811 is a deficient number, since it is larger than the sum of its proper divisors (226886310133).

1587438348811 is a wasteful number, since it uses less digits than its factorization.

1587438348811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675401.

The product of its digits is 20643840, while the sum is 61.

The spelling of 1587438348811 in words is "one trillion, five hundred eighty-seven billion, four hundred thirty-eight million, three hundred forty-eight thousand, eight hundred eleven".