212542775323755 has 128 divisors (see below), whose sum is σ = 379627928064000. Its totient is φ = 100911941222400.

The previous prime is 212542775323673. The next prime is 212542775323757. The reversal of 212542775323755 is 557323577245212.

It is not a de Polignac number, because 212542775323755 - 2¹⁸ = 212542775061611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212542775323757) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10419264046 + ... + 10419284444.

It is an arithmetic number, because the mean of its divisors is an integer number (2965843188000).

Almost surely, 2^{212542775323755} is an apocalyptic number.

212542775323755 is a deficient number, since it is larger than the sum of its proper divisors (167085152740245).

212542775323755 is a wasteful number, since it uses less digits than its factorization.

212542775323755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23765.

The product of its digits is 123480000, while the sum is 60.

The spelling of 212542775323755 in words is "two hundred twelve trillion, five hundred forty-two billion, seven hundred seventy-five million, three hundred twenty-three thousand, seven hundred fifty-five".