213741777625 has 16 divisors (see below), whose sum is σ = 275948010000. Its totient is φ = 165097094400.

The previous prime is 213741777593. The next prime is 213741777647. The reversal of 213741777625 is 526777147312.

It can be written as a sum of positive squares in 8 ways, for example, as 100050750864 + 113691026761 = 316308^2 + 337181^2 .

It is not a de Polignac number, because 213741777625 - 2⁵ = 213741777593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29478000 + ... + 29485249.

It is an arithmetic number, because the mean of its divisors is an integer number (17246750625).

Almost surely, 2^213741777625 is an apocalyptic number.

213741777625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213741777625 is a deficient number, since it is larger than the sum of its proper divisors (62206232375).

213741777625 is an equidigital number, since it uses as much as digits as its factorization.

213741777625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58963293 (or 58963283 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 52.

The spelling of 213741777625 in words is "two hundred thirteen billion, seven hundred forty-one million, seven hundred seventy-seven thousand, six hundred twenty-five".