2129463757 has 4 divisors (see below), whose sum is σ = 2130558300. Its totient is φ = 2128369216.

The previous prime is 2129463731. The next prime is 2129463761. The reversal of 2129463757 is 7573649212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 818589321 + 1310874436 = 28611^2 + 36206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129463757 - 2⁷ = 2129463629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129463727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544348 + ... + 548245.

It is an arithmetic number, because the mean of its divisors is an integer number (532639575).

Almost surely, 2^2129463757 is an apocalyptic number.

It is an amenable number.

2129463757 is a deficient number, since it is larger than the sum of its proper divisors (1094543).

2129463757 is a wasteful number, since it uses less digits than its factorization.

2129463757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094542.

The product of its digits is 635040, while the sum is 46.

The square root of 2129463757 is about 46146.1131299268. The cubic root of 2129463757 is about 1286.5403677996.

The spelling of 2129463757 in words is "two billion, one hundred twenty-nine million, four hundred sixty-three thousand, seven hundred fifty-seven".