212156370487 has 2 divisors, whose sum is σ = 212156370488. Its totient is φ = 212156370486.

The previous prime is 212156370451. The next prime is 212156370571. The reversal of 212156370487 is 784073651212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212156370487 - 2⁷ = 212156370359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212156370787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106078185243 + 106078185244.

It is an arithmetic number, because the mean of its divisors is an integer number (106078185244).

Almost surely, 2^212156370487 is an apocalyptic number.

212156370487 is a deficient number, since it is larger than the sum of its proper divisors (1).

212156370487 is an equidigital number, since it uses as much as digits as its factorization.

212156370487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 212156370487 in words is "two hundred twelve billion, one hundred fifty-six million, three hundred seventy thousand, four hundred eighty-seven".