70205407439 has 4 divisors (see below), whose sum is σ = 70929174624. Its totient is φ = 69481640256.

The previous prime is 70205407409. The next prime is 70205407457. The reversal of 70205407439 is 93470450207.

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

It is a cyclic number.

It is not a de Polignac number, because 70205407439 - 2⁸ = 70205407183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70205407396 and 70205407405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70205407409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361883447 + ... + 361883640.

It is an arithmetic number, because the mean of its divisors is an integer number (17732293656).

Almost surely, 2^70205407439 is an apocalyptic number.

70205407439 is a deficient number, since it is larger than the sum of its proper divisors (723767185).

70205407439 is an equidigital number, since it uses as much as digits as its factorization.

70205407439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723767184.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 70205407439 in words is "seventy billion, two hundred five million, four hundred seven thousand, four hundred thirty-nine".