70344561263 has 4 divisors (see below), whose sum is σ = 70346662368. Its totient is φ = 70342460160.

The previous prime is 70344561229. The next prime is 70344561373. The reversal of 70344561263 is 36216544307.

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 70344561263 - 2²⁴ = 70327784047 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 70344561263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70344591263) 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, 999506 + ... + 1067567.

It is an arithmetic number, because the mean of its divisors is an integer number (17586665592).

Almost surely, 2^70344561263 is an apocalyptic number.

70344561263 is a deficient number, since it is larger than the sum of its proper divisors (2101105).

70344561263 is a wasteful number, since it uses less digits than its factorization.

70344561263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101104.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 70344561263 in words is "seventy billion, three hundred forty-four million, five hundred sixty-one thousand, two hundred sixty-three".