10212578398739 has 2 divisors, whose sum is σ = 10212578398740. Its totient is φ = 10212578398738.

The previous prime is 10212578398721. The next prime is 10212578398843. The reversal of 10212578398739 is 93789387521201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212578398739 - 2²⁸ = 10212309963283 is a prime.

It is not a weakly prime, because it can be changed into another prime (10212578398709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106289199369 + 5106289199370.

It is an arithmetic number, because the mean of its divisors is an integer number (5106289199370).

Almost surely, 2^{10212578398739} is an apocalyptic number.

10212578398739 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212578398739 is an equidigital number, since it uses as much as digits as its factorization.

10212578398739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 10212578398739 in words is "ten trillion, two hundred twelve billion, five hundred seventy-eight million, three hundred ninety-eight thousand, seven hundred thirty-nine".