1139780475021 has 16 divisors (see below), whose sum is σ = 1624459132800. Its totient is φ = 709089300480.

The previous prime is 1139780475019. The next prime is 1139780475037. The reversal of 1139780475021 is 1205740879311.

It is not a de Polignac number, because 1139780475021 - 2¹ = 1139780475019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139780475061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201442996 + ... + 201448653.

It is an arithmetic number, because the mean of its divisors is an integer number (101528695800).

Almost surely, 2^{1139780475021} is an apocalyptic number.

It is an amenable number.

1139780475021 is a deficient number, since it is larger than the sum of its proper divisors (484678657779).

1139780475021 is a wasteful number, since it uses less digits than its factorization.

1139780475021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402891716.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 1139780475021 in words is "one trillion, one hundred thirty-nine billion, seven hundred eighty million, four hundred seventy-five thousand, twenty-one".