70708779151421 has 2 divisors, whose sum is σ = 70708779151422. Its totient is φ = 70708779151420.

The previous prime is 70708779151357. The next prime is 70708779151429. The reversal of 70708779151421 is 12415197780707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70182740820196 + 526038331225 = 8377514^2 + 725285^2 .

It is a cyclic number.

It is not a de Polignac number, because 70708779151421 - 2⁶ = 70708779151357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70708779151429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35354389575710 + 35354389575711.

It is an arithmetic number, because the mean of its divisors is an integer number (35354389575711).

Almost surely, 2^{70708779151421} is an apocalyptic number.

It is an amenable number.

70708779151421 is a deficient number, since it is larger than the sum of its proper divisors (1).

70708779151421 is an equidigital number, since it uses as much as digits as its factorization.

70708779151421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6914880, while the sum is 59.

The spelling of 70708779151421 in words is "seventy trillion, seven hundred eight billion, seven hundred seventy-nine million, one hundred fifty-one thousand, four hundred twenty-one".