70681672249 has 4 divisors (see below), whose sum is σ = 72185537664. Its totient is φ = 69177806836.

The previous prime is 70681672231. The next prime is 70681672253. The reversal of 70681672249 is 94227618607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70681672249 - 2⁷ = 70681672121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70681672196 and 70681672205.

It is not an unprimeable number, because it can be changed into a prime (70681642249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751932637 + ... + 751932730.

It is an arithmetic number, because the mean of its divisors is an integer number (18046384416).

Almost surely, 2^70681672249 is an apocalyptic number.

It is an amenable number.

70681672249 is a deficient number, since it is larger than the sum of its proper divisors (1503865415).

70681672249 is a wasteful number, since it uses less digits than its factorization.

70681672249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503865414.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 70681672249 in words is "seventy billion, six hundred eighty-one million, six hundred seventy-two thousand, two hundred forty-nine".