69982938145 has 4 divisors (see below), whose sum is σ = 83979525780. Its totient is φ = 55986350512.

The previous prime is 69982938043. The next prime is 69982938149. The reversal of 69982938145 is 54183928996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21325637089 + 48657301056 = 146033^2 + 220584^2 .

It is a cyclic number.

It is not a de Polignac number, because 69982938145 - 2¹³ = 69982929953 is a prime.

It is a super-2 number, since 2×69982938145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69982938149) 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, 6998293810 + ... + 6998293819.

It is an arithmetic number, because the mean of its divisors is an integer number (20994881445).

Almost surely, 2^69982938145 is an apocalyptic number.

It is an amenable number.

69982938145 is a deficient number, since it is larger than the sum of its proper divisors (13996587635).

69982938145 is a wasteful number, since it uses less digits than its factorization.

69982938145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13996587634.

The product of its digits is 33592320, while the sum is 64.

The spelling of 69982938145 in words is "sixty-nine billion, nine hundred eighty-two million, nine hundred thirty-eight thousand, one hundred forty-five".