70008263821 has 4 divisors (see below), whose sum is σ = 72266594944. Its totient is φ = 67749932700.

The previous prime is 70008263807. The next prime is 70008263833. The reversal of 70008263821 is 12836280007.

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 not a de Polignac number, because 70008263821 - 2⁹ = 70008263309 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 (70008263851) 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, 1129165515 + ... + 1129165576.

It is an arithmetic number, because the mean of its divisors is an integer number (18066648736).

Almost surely, 2^70008263821 is an apocalyptic number.

It is an amenable number.

70008263821 is a deficient number, since it is larger than the sum of its proper divisors (2258331123).

70008263821 is a wasteful number, since it uses less digits than its factorization.

70008263821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258331122.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 70008263821 in words is "seventy billion, eight million, two hundred sixty-three thousand, eight hundred twenty-one".