70238378535556 has 81 divisors (see below), whose sum is σ = 157168516016421. Its totient is φ = 27365099176800.

The previous prime is 70238378535527. The next prime is 70238378535593. The reversal of 70238378535556 is 65553587383207.

The square root of 70238378535556 is 8380834.

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

70238378535556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 62605535717956 + 7632842817600 = 7912366^2 + 2762760^2 .

It is a super-3 number, since 3×70238378535556³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70238378535491 and 70238378535500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1290621226 + ... + 1290675646.

Almost surely, 2^{70238378535556} is an apocalyptic number.

70238378535556 is the 8380834-th square number.

It is an amenable number.

70238378535556 is an abundant number, since it is smaller than the sum of its proper divisors (86930137480865).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70238378535556 is an frugal number, since it uses more digits than its factorization.

70238378535556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108882 (or 54441 counting only the distinct ones).

The product of its (nonzero) digits is 635040000, while the sum is 67.

The spelling of 70238378535556 in words is "seventy trillion, two hundred thirty-eight billion, three hundred seventy-eight million, five hundred thirty-five thousand, five hundred fifty-six".