212675640545 has 64 divisors (see below), whose sum is σ = 272782702080. Its totient is φ = 158945126400.

The previous prime is 212675640521. The next prime is 212675640587. The reversal of 212675640545 is 545046576212.

It is not a de Polignac number, because 212675640545 - 2¹⁰ = 212675639521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212675640545.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226009775 + ... + 226010715.

It is an arithmetic number, because the mean of its divisors is an integer number (4262229720).

Almost surely, 2^212675640545 is an apocalyptic number.

It is an amenable number.

212675640545 is a deficient number, since it is larger than the sum of its proper divisors (60107061535).

212675640545 is a wasteful number, since it uses less digits than its factorization.

212675640545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 212675640545 in words is "two hundred twelve billion, six hundred seventy-five million, six hundred forty thousand, five hundred forty-five".