212743858437 has 12 divisors (see below), whose sum is σ = 335232746784. Its totient is φ = 128935671720.

The previous prime is 212743858433. The next prime is 212743858487. The reversal of 212743858437 is 734858347212.

It is a happy number.

212743858437 is a `hidden beast` number, since 2 + 1 + 27 + 4 + 3 + 8 + 584 + 37 = 666.

It is not a de Polignac number, because 212743858437 - 2² = 212743858433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212743858433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1074463833 + ... + 1074464030.

It is an arithmetic number, because the mean of its divisors is an integer number (27936062232).

Almost surely, 2^212743858437 is an apocalyptic number.

It is an amenable number.

212743858437 is a deficient number, since it is larger than the sum of its proper divisors (122488888347).

212743858437 is a wasteful number, since it uses less digits than its factorization.

212743858437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148927880 (or 2148927877 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 212743858437 in words is "two hundred twelve billion, seven hundred forty-three million, eight hundred fifty-eight thousand, four hundred thirty-seven".