70436373655 has 4 divisors (see below), whose sum is σ = 84523648392. Its totient is φ = 56349098920.

The previous prime is 70436373607. The next prime is 70436373661. The reversal of 70436373655 is 55637363407.

It is a happy number.

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

It is not a de Polignac number, because 70436373655 - 2⁹ = 70436373143 is a prime.

It is a super-2 number, since 2×70436373655² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70436373599 and 70436373608.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7043637361 + ... + 7043637370.

It is an arithmetic number, because the mean of its divisors is an integer number (21130912098).

Almost surely, 2^70436373655 is an apocalyptic number.

70436373655 is a deficient number, since it is larger than the sum of its proper divisors (14087274737).

70436373655 is a wasteful number, since it uses less digits than its factorization.

70436373655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14087274736.

The product of its (nonzero) digits is 4762800, while the sum is 49.

The spelling of 70436373655 in words is "seventy billion, four hundred thirty-six million, three hundred seventy-three thousand, six hundred fifty-five".