70645641371 has 16 divisors (see below), whose sum is σ = 78065467200. Its totient is φ = 63629088768.

The previous prime is 70645641361. The next prime is 70645641379. The reversal of 70645641371 is 17314654607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70645641371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70645641379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578351 + ... + 689768.

It is an arithmetic number, because the mean of its divisors is an integer number (4879091700).

Almost surely, 2^70645641371 is an apocalyptic number.

70645641371 is a deficient number, since it is larger than the sum of its proper divisors (7419825829).

70645641371 is a wasteful number, since it uses less digits than its factorization.

70645641371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268278.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 70645641371 in words is "seventy billion, six hundred forty-five million, six hundred forty-one thousand, three hundred seventy-one".