70353436644 has 18 divisors (see below), whose sum is σ = 177837853830. Its totient is φ = 23451145536.

The previous prime is 70353436613. The next prime is 70353436651. The reversal of 70353436644 is 44663435307.

70353436644 is a `hidden beast` number, since 70 + 3 + 534 + 3 + 6 + 6 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41927476644 + 28425960000 = 204762^2 + 168600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×70353436644³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70353436644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 977131029 + ... + 977131100.

Almost surely, 2^70353436644 is an apocalyptic number.

It is an amenable number.

70353436644 is an abundant number, since it is smaller than the sum of its proper divisors (107484417186).

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

70353436644 is a wasteful number, since it uses less digits than its factorization.

70353436644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954262139 (or 1954262134 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 45.

The spelling of 70353436644 in words is "seventy billion, three hundred fifty-three million, four hundred thirty-six thousand, six hundred forty-four".