69928734979 has 2 divisors, whose sum is σ = 69928734980. Its totient is φ = 69928734978.

The previous prime is 69928734961. The next prime is 69928734989. The reversal of 69928734979 is 97943782996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69928734979 - 2¹³ = 69928726787 is a prime.

It is not a weakly prime, because it can be changed into another prime (69928734919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34964367489 + 34964367490.

It is an arithmetic number, because the mean of its divisors is an integer number (34964367490).

Almost surely, 2^69928734979 is an apocalyptic number.

69928734979 is a deficient number, since it is larger than the sum of its proper divisors (1).

69928734979 is an equidigital number, since it uses as much as digits as its factorization.

69928734979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370355328, while the sum is 73.

The spelling of 69928734979 in words is "sixty-nine billion, nine hundred twenty-eight million, seven hundred thirty-four thousand, nine hundred seventy-nine".