212925928546 has 8 divisors (see below), whose sum is σ = 321720199020. Its totient is φ = 105685862208.

The previous prime is 212925928517. The next prime is 212925928549. The reversal of 212925928546 is 645829529212.

It can be written as a sum of positive squares in 2 ways, for example, as 182832352921 + 30093575625 = 427589^2 + 173475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212925928549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388550691 + ... + 388551238.

Almost surely, 2^212925928546 is an apocalyptic number.

212925928546 is a deficient number, since it is larger than the sum of its proper divisors (108794270474).

212925928546 is a wasteful number, since it uses less digits than its factorization.

212925928546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777102068.

The product of its digits is 6220800, while the sum is 55.

The spelling of 212925928546 in words is "two hundred twelve billion, nine hundred twenty-five million, nine hundred twenty-eight thousand, five hundred forty-six".