70694429831 has 4 divisors (see below), whose sum is σ = 71662846752. Its totient is φ = 69726012912.

The previous prime is 70694429821. The next prime is 70694429833. The reversal of 70694429831 is 13892449607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70694429831 is a prime.

It is a super-2 number, since 2×70694429831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70694429833) 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, 484208351 + ... + 484208496.

It is an arithmetic number, because the mean of its divisors is an integer number (17915711688).

Almost surely, 2^70694429831 is an apocalyptic number.

70694429831 is a deficient number, since it is larger than the sum of its proper divisors (968416921).

70694429831 is an equidigital number, since it uses as much as digits as its factorization.

70694429831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968416920.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 70694429831 in words is "seventy billion, six hundred ninety-four million, four hundred twenty-nine thousand, eight hundred thirty-one".