212705371519 has 4 divisors (see below), whose sum is σ = 212726956120. Its totient is φ = 212683786920.

The previous prime is 212705371429. The next prime is 212705371537. The reversal of 212705371519 is 915173507212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212705371519 - 2²¹ = 212703274367 is a prime.

It is a super-2 number, since 2×212705371519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212705311519) 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, 10777512 + ... + 10797229.

It is an arithmetic number, because the mean of its divisors is an integer number (53181739030).

Almost surely, 2^212705371519 is an apocalyptic number.

212705371519 is a deficient number, since it is larger than the sum of its proper divisors (21584601).

212705371519 is an equidigital number, since it uses as much as digits as its factorization.

212705371519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21584600.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 212705371519 in words is "two hundred twelve billion, seven hundred five million, three hundred seventy-one thousand, five hundred nineteen".