70557647903 has 4 divisors (see below), whose sum is σ = 70559256768. Its totient is φ = 70556039040.

The previous prime is 70557647899. The next prime is 70557647921. The reversal of 70557647903 is 30974675507.

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

It is a cyclic number.

It is not a de Polignac number, because 70557647903 - 2² = 70557647899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70557640903) 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, 736751 + ... + 826992.

It is an arithmetic number, because the mean of its divisors is an integer number (17639814192).

Almost surely, 2^70557647903 is an apocalyptic number.

70557647903 is a deficient number, since it is larger than the sum of its proper divisors (1608865).

70557647903 is a wasteful number, since it uses less digits than its factorization.

70557647903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608864.

The product of its (nonzero) digits is 5556600, while the sum is 53.

The spelling of 70557647903 in words is "seventy billion, five hundred fifty-seven million, six hundred forty-seven thousand, nine hundred three".