70812418405 has 4 divisors (see below), whose sum is σ = 84974902092. Its totient is φ = 56649934720.

The previous prime is 70812418403. The next prime is 70812418463. The reversal of 70812418405 is 50481421807.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16829613441 + 53982804964 = 129729^2 + 232342^2 .

It is not a de Polignac number, because 70812418405 - 2¹ = 70812418403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70812418403) 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, 7081241836 + ... + 7081241845.

It is an arithmetic number, because the mean of its divisors is an integer number (21243725523).

Almost surely, 2^70812418405 is an apocalyptic number.

It is an amenable number.

70812418405 is a deficient number, since it is larger than the sum of its proper divisors (14162483687).

70812418405 is a wasteful number, since it uses less digits than its factorization.

70812418405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14162483686.

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 70812418405 in words is "seventy billion, eight hundred twelve million, four hundred eighteen thousand, four hundred five".