212856635628058 has 16 divisors (see below), whose sum is σ = 320990853795840. Its totient is φ = 105861198700656.

The previous prime is 212856635627939. The next prime is 212856635628059. The reversal of 212856635628058 is 850826536658212.

It is a happy number.

It is a super-3 number, since 3×212856635628058³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212856635627984 and 212856635628002.

It is not an unprimeable number, because it can be changed into a prime (212856635628059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378302973 + ... + 378865216.

It is an arithmetic number, because the mean of its divisors is an integer number (20061928362240).

Almost surely, 2^{212856635628058} is an apocalyptic number.

212856635628058 is a deficient number, since it is larger than the sum of its proper divisors (108134218167782).

212856635628058 is a wasteful number, since it uses less digits than its factorization.

212856635628058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757168941.

The product of its (nonzero) digits is 331776000, while the sum is 67.

The spelling of 212856635628058 in words is "two hundred twelve trillion, eight hundred fifty-six billion, six hundred thirty-five million, six hundred twenty-eight thousand, fifty-eight".