70669149251 has 4 divisors (see below), whose sum is σ = 70871640000. Its totient is φ = 70466658504.

The previous prime is 70669149227. The next prime is 70669149253. The reversal of 70669149251 is 15294196607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15294196607 = 83 ⋅184267429.

It is a cyclic number.

It is not a de Polignac number, because 70669149251 - 2²⁶ = 70602040387 is a prime.

It is a super-2 number, since 2×70669149251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70669149251.

It is not an unprimeable number, because it can be changed into a prime (70669149253) 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, 101244851 + ... + 101245548.

It is an arithmetic number, because the mean of its divisors is an integer number (17717910000).

Almost surely, 2^70669149251 is an apocalyptic number.

70669149251 is a deficient number, since it is larger than the sum of its proper divisors (202490749).

70669149251 is a wasteful number, since it uses less digits than its factorization.

70669149251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202490748.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 70669149251 in words is "seventy billion, six hundred sixty-nine million, one hundred forty-nine thousand, two hundred fifty-one".