2130778281024 has 140 divisors (see below), whose sum is σ = 6358687879500. Its totient is φ = 705492329472.

The previous prime is 2130778281019. The next prime is 2130778281041. The reversal of 2130778281024 is 4201828770312.

It can be written as a sum of positive squares in 2 ways, for example, as 587319911424 + 1543458369600 = 766368^2 + 1242360^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 606879 + ... + 2151710.

Almost surely, 2^{2130778281024} is an apocalyptic number.

2130778281024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2130778281024 is an abundant number, since it is smaller than the sum of its proper divisors (4227909598476).

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

2130778281024 is a wasteful number, since it uses less digits than its factorization.

2130778281024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758762 (or 2758743 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 2130778281024 in words is "two trillion, one hundred thirty billion, seven hundred seventy-eight million, two hundred eighty-one thousand, twenty-four".