70328636431 has 2 divisors, whose sum is σ = 70328636432. Its totient is φ = 70328636430.

The previous prime is 70328636419. The next prime is 70328636471. The reversal of 70328636431 is 13463682307.

It is a weak prime.

It is an emirp because it is prime and its reverse (13463682307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70328636431 - 2⁷ = 70328636303 is a prime.

It is a super-2 number, since 2×70328636431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70328636471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35164318215 + 35164318216.

It is an arithmetic number, because the mean of its divisors is an integer number (35164318216).

Almost surely, 2^70328636431 is an apocalyptic number.

70328636431 is a deficient number, since it is larger than the sum of its proper divisors (1).

70328636431 is an equidigital number, since it uses as much as digits as its factorization.

70328636431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 70328636431 in words is "seventy billion, three hundred twenty-eight million, six hundred thirty-six thousand, four hundred thirty-one".