69941389937 has 2 divisors, whose sum is σ = 69941389938. Its totient is φ = 69941389936.

The previous prime is 69941389891. The next prime is 69941389949. The reversal of 69941389937 is 73998314996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47458186801 + 22483203136 = 217849^2 + 149944^2 .

It is a cyclic number.

It is not a de Polignac number, because 69941389937 - 2³⁴ = 52761520753 is a prime.

It is not a weakly prime, because it can be changed into another prime (69941389957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34970694968 + 34970694969.

It is an arithmetic number, because the mean of its divisors is an integer number (34970694969).

Almost surely, 2^69941389937 is an apocalyptic number.

It is an amenable number.

69941389937 is a deficient number, since it is larger than the sum of its proper divisors (1).

69941389937 is an equidigital number, since it uses as much as digits as its factorization.

69941389937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79361856, while the sum is 68.

It can be divided in two parts, 6994 and 1389937, that added together give a palindrome (1396931).

The spelling of 69941389937 in words is "sixty-nine billion, nine hundred forty-one million, three hundred eighty-nine thousand, nine hundred thirty-seven".