1527563778087 has 16 divisors (see below), whose sum is σ = 2071486903680. Its totient is φ = 1001011818912.

The previous prime is 1527563778049. The next prime is 1527563778109. The reversal of 1527563778087 is 7808773657251.

It is not a de Polignac number, because 1527563778087 - 2¹⁶ = 1527563712551 is a prime.

It is a super-2 number, since 2×1527563778087² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1527563778007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291393 + ... + 2173205.

It is an arithmetic number, because the mean of its divisors is an integer number (129467931480).

Almost surely, 2^{1527563778087} is an apocalyptic number.

1527563778087 is a deficient number, since it is larger than the sum of its proper divisors (543923125593).

1527563778087 is an equidigital number, since it uses as much as digits as its factorization.

1527563778087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891662.

The product of its (nonzero) digits is 138297600, while the sum is 66.

The spelling of 1527563778087 in words is "one trillion, five hundred twenty-seven billion, five hundred sixty-three million, seven hundred seventy-eight thousand, eighty-seven".