212343456767898 has 32 divisors (see below), whose sum is σ = 431027382311424. Its totient is φ = 69724416568752.

The previous prime is 212343456767867. The next prime is 212343456767951. The reversal of 212343456767898 is 898767654343212.

212343456767898 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104375611 + ... + 106390577.

It is an arithmetic number, because the mean of its divisors is an integer number (13469605697232).

Almost surely, 2^{212343456767898} is an apocalyptic number.

212343456767898 is an abundant number, since it is smaller than the sum of its proper divisors (218683925543526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212343456767898 is a wasteful number, since it uses less digits than its factorization.

212343456767898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277186.

The product of its digits is 2926264320, while the sum is 75.

The spelling of 212343456767898 in words is "two hundred twelve trillion, three hundred forty-three billion, four hundred fifty-six million, seven hundred sixty-seven thousand, eight hundred ninety-eight".