70361390369 has 4 divisors (see below), whose sum is σ = 71252040960. Its totient is φ = 69470739780.

The previous prime is 70361390357. The next prime is 70361390371. The reversal of 70361390369 is 96309316307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70361390369 - 2¹² = 70361386273 is a prime.

It is a super-2 number, since 2×70361390369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70361390069) by changing a digit.

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, 445325177 + ... + 445325334.

It is an arithmetic number, because the mean of its divisors is an integer number (17813010240).

Almost surely, 2^70361390369 is an apocalyptic number.

70361390369 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

70361390369 is a deficient number, since it is larger than the sum of its proper divisors (890650591).

70361390369 is an equidigital number, since it uses as much as digits as its factorization.

70361390369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890650590.

The product of its (nonzero) digits is 551124, while the sum is 47.

The spelling of 70361390369 in words is "seventy billion, three hundred sixty-one million, three hundred ninety thousand, three hundred sixty-nine".