70557218688857 has 8 divisors (see below), whose sum is σ = 72153959090400. Its totient is φ = 68973840132064.

The previous prime is 70557218688841. The next prime is 70557218688863. The reversal of 70557218688857 is 75888681275507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70557218688857 - 2⁴ = 70557218688841 is a prime.

It is a super-2 number, since 2×70557218688857² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70557218628857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340450508 + ... + 3340471629.

It is an arithmetic number, because the mean of its divisors is an integer number (9019244886300).

Almost surely, 2^{70557218688857} is an apocalyptic number.

It is an amenable number.

70557218688857 is a deficient number, since it is larger than the sum of its proper divisors (1596740401543).

70557218688857 is a wasteful number, since it uses less digits than its factorization.

70557218688857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680922375.

The product of its (nonzero) digits is 2107392000, while the sum is 77.

The spelling of 70557218688857 in words is "seventy trillion, five hundred fifty-seven billion, two hundred eighteen million, six hundred eighty-eight thousand, eight hundred fifty-seven".