70551638039 has 2 divisors, whose sum is σ = 70551638040. Its totient is φ = 70551638038.

The previous prime is 70551638023. The next prime is 70551638057. The reversal of 70551638039 is 93083615507.

It is a weak prime.

It is an emirp because it is prime and its reverse (93083615507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70551638039 - 2⁴ = 70551638023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70551637984 and 70551638002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70551638009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35275819019 + 35275819020.

It is an arithmetic number, because the mean of its divisors is an integer number (35275819020).

Almost surely, 2^70551638039 is an apocalyptic number.

70551638039 is a deficient number, since it is larger than the sum of its proper divisors (1).

70551638039 is an equidigital number, since it uses as much as digits as its factorization.

70551638039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 70551638039 in words is "seventy billion, five hundred fifty-one million, six hundred thirty-eight thousand, thirty-nine".