2131363578 has 16 divisors (see below), whose sum is σ = 4273469280. Its totient is φ = 708664176.

The previous prime is 2131363573. The next prime is 2131363579. The reversal of 2131363578 is 8753631312.

It is not an unprimeable number, because it can be changed into a prime (2131363573) 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 7 ways as a sum of consecutive naturals, for example, 445008 + ... + 449771.

It is an arithmetic number, because the mean of its divisors is an integer number (267091830).

Almost surely, 2^2131363578 is an apocalyptic number.

2131363578 is an abundant number, since it is smaller than the sum of its proper divisors (2142105702).

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

2131363578 is a wasteful number, since it uses less digits than its factorization.

2131363578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895181.

The product of its digits is 90720, while the sum is 39.

The square root of 2131363578 is about 46166.6933838671. The cubic root of 2131363578 is about 1286.9228537485.

The spelling of 2131363578 in words is "two billion, one hundred thirty-one million, three hundred sixty-three thousand, five hundred seventy-eight".