1527724772868 has 48 divisors (see below), whose sum is σ = 4078525860864. Its totient is φ = 436000670880.

The previous prime is 1527724772863. The next prime is 1527724772909. The reversal of 1527724772868 is 8682774277251.

It is a junction number, because it is equal to n+sod(n) for n = 1527724772799 and 1527724772808.

It is not an unprimeable number, because it can be changed into a prime (1527724772863) 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, 10177578 + ... + 10326593.

It is an arithmetic number, because the mean of its divisors is an integer number (84969288768).

Almost surely, 2^{1527724772868} is an apocalyptic number.

It is an amenable number.

1527724772868 is an abundant number, since it is smaller than the sum of its proper divisors (2550801087996).

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

1527724772868 is a wasteful number, since it uses less digits than its factorization.

1527724772868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20505072 (or 20505070 counting only the distinct ones).

The product of its digits is 147517440, while the sum is 66.

The spelling of 1527724772868 in words is "one trillion, five hundred twenty-seven billion, seven hundred twenty-four million, seven hundred seventy-two thousand, eight hundred sixty-eight".