70858713249 has 21 divisors (see below), whose sum is σ = 106250246913. Its totient is φ = 47234350692.

The previous prime is 70858713239. The next prime is 70858713281. The reversal of 70858713249 is 94231785807.

It is a happy number.

The square root of 70858713249 is 266193.

It is a perfect power (a square), and thus also a powerful number.

70858713249 is a `hidden beast` number, since 7 + 0 + 8 + 587 + 13 + 2 + 49 = 666.

It is not a de Polignac number, because 70858713249 - 2¹⁵ = 70858680481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70858713195 and 70858713204.

It is not an unprimeable number, because it can be changed into a prime (70858713239) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 7182282 + ... + 7192140.

Almost surely, 2^70858713249 is an apocalyptic number.

70858713249 is the 266193-rd square number.

70858713249 is the 133097-th centered octagonal number.

It is an amenable number.

70858713249 is a deficient number, since it is larger than the sum of its proper divisors (35391533664).

70858713249 is an frugal number, since it uses more digits than its factorization.

70858713249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19736 (or 9862 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 70858713249 in words is "seventy billion, eight hundred fifty-eight million, seven hundred thirteen thousand, two hundred forty-nine".