70306263021 has 16 divisors (see below), whose sum is σ = 94728800960. Its totient is φ = 46379796480.

The previous prime is 70306263019. The next prime is 70306263031. The reversal of 70306263021 is 12036260307.

It is not a de Polignac number, because 70306263021 - 2¹ = 70306263019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70306263021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70306263011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201940 + ... + 425901.

It is an arithmetic number, because the mean of its divisors is an integer number (5920550060).

Almost surely, 2^70306263021 is an apocalyptic number.

It is an amenable number.

70306263021 is a deficient number, since it is larger than the sum of its proper divisors (24422537939).

70306263021 is a wasteful number, since it uses less digits than its factorization.

70306263021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628236.

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 70306263021 in words is "seventy billion, three hundred six million, two hundred sixty-three thousand, twenty-one".