70906820809 has 8 divisors (see below), whose sum is σ = 77355203328. Its totient is φ = 64458822960.

The previous prime is 70906820797. The next prime is 70906820833. The reversal of 70906820809 is 90802860907.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70906820809 - 2¹¹ = 70906818761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70906320809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401064 + ... + 550150.

It is an arithmetic number, because the mean of its divisors is an integer number (9669400416).

Almost surely, 2^70906820809 is an apocalyptic number.

It is an amenable number.

70906820809 is a deficient number, since it is larger than the sum of its proper divisors (6448382519).

70906820809 is a wasteful number, since it uses less digits than its factorization.

70906820809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192335.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 70906820809 in words is "seventy billion, nine hundred six million, eight hundred twenty thousand, eight hundred nine".