210451138773 has 4 divisors (see below), whose sum is σ = 280601518368. Its totient is φ = 140300759180.

The previous prime is 210451138739. The next prime is 210451138823. The reversal of 210451138773 is 377831154012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210451138773 - 2³² = 206156171477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210451138273) 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 3 ways as a sum of consecutive naturals, for example, 35075189793 + ... + 35075189798.

It is an arithmetic number, because the mean of its divisors is an integer number (70150379592).

Almost surely, 2^210451138773 is an apocalyptic number.

It is an amenable number.

210451138773 is a deficient number, since it is larger than the sum of its proper divisors (70150379595).

210451138773 is an equidigital number, since it uses as much as digits as its factorization.

210451138773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70150379594.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 210451138773 in words is "two hundred ten billion, four hundred fifty-one million, one hundred thirty-eight thousand, seven hundred seventy-three".