1027078520021 has 8 divisors (see below), whose sum is σ = 1076813421504. Its totient is φ = 977766894720.

The previous prime is 1027078519963. The next prime is 1027078520071. The reversal of 1027078520021 is 1200258707201.

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 1027078520021 - 2²⁶ = 1027011411157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027078520071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105814076 + ... + 105823781.

It is an arithmetic number, because the mean of its divisors is an integer number (134601677688).

Almost surely, 2^{1027078520021} is an apocalyptic number.

It is an amenable number.

1027078520021 is a deficient number, since it is larger than the sum of its proper divisors (49734901483).

1027078520021 is a wasteful number, since it uses less digits than its factorization.

1027078520021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211638091.

The product of its (nonzero) digits is 15680, while the sum is 35.

The spelling of 1027078520021 in words is "one trillion, twenty-seven billion, seventy-eight million, five hundred twenty thousand, twenty-one".