70214405251 has 4 divisors (see below), whose sum is σ = 70214970952. Its totient is φ = 70213839552.

The previous prime is 70214405249. The next prime is 70214405357. The reversal of 70214405251 is 15250441207.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 70214405251 - 2¹ = 70214405249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70214415251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6990 + ... + 374803.

It is an arithmetic number, because the mean of its divisors is an integer number (17553742738).

Almost surely, 2^70214405251 is an apocalyptic number.

70214405251 is a deficient number, since it is larger than the sum of its proper divisors (565701).

70214405251 is a wasteful number, since it uses less digits than its factorization.

70214405251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565700.

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 70214405251 its reverse (15250441207), we get a palindrome (85464846458).

The spelling of 70214405251 in words is "seventy billion, two hundred fourteen million, four hundred five thousand, two hundred fifty-one".