1527563778082 has 4 divisors (see below), whose sum is σ = 2291345667126. Its totient is φ = 763781889040.

The previous prime is 1527563778049. The next prime is 1527563778109. The reversal of 1527563778082 is 2808773657251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1527475999921 + 87778161 = 1235911^2 + 9369^2 .

It is a super-2 number, since 2×1527563778082² (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 1527563778082.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381890944519 + ... + 381890944522.

Almost surely, 2^{1527563778082} is an apocalyptic number.

1527563778082 is a deficient number, since it is larger than the sum of its proper divisors (763781889044).

1527563778082 is an equidigital number, since it uses as much as digits as its factorization.

1527563778082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763781889043.

The product of its (nonzero) digits is 39513600, while the sum is 61.

The spelling of 1527563778082 in words is "one trillion, five hundred twenty-seven billion, five hundred sixty-three million, seven hundred seventy-eight thousand, eighty-two".