70744514251 has 2 divisors, whose sum is σ = 70744514252. Its totient is φ = 70744514250.

The previous prime is 70744514249. The next prime is 70744514273. The reversal of 70744514251 is 15241544707.

It is a weak prime.

It is an emirp because it is prime and its reverse (15241544707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70744514251 - 2¹ = 70744514249 is a prime.

Together with 70744514249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70744517251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35372257125 + 35372257126.

It is an arithmetic number, because the mean of its divisors is an integer number (35372257126).

Almost surely, 2^70744514251 is an apocalyptic number.

70744514251 is a deficient number, since it is larger than the sum of its proper divisors (1).

70744514251 is an equidigital number, since it uses as much as digits as its factorization.

70744514251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 70744514251 in words is "seventy billion, seven hundred forty-four million, five hundred fourteen thousand, two hundred fifty-one".