69000019 has 16 divisors (see below), whose sum is σ = 78405120. Its totient is φ = 60147360.

The previous prime is 68999981. The next prime is 69000047. The reversal of 69000019 is 91000096.

It is a cyclic number.

It is not a de Polignac number, because 69000019 - 2¹⁵ = 68967251 is a prime.

It is a super-2 number, since 2×69000019² = 9522005244000722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68999957 and 69000002.

It is not an unprimeable number, because it can be changed into a prime (69000049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51334 + ... + 52660.

It is an arithmetic number, because the mean of its divisors is an integer number (4900320).

Almost surely, 2^69000019 is an apocalyptic number.

69000019 is a deficient number, since it is larger than the sum of its proper divisors (9405101).

69000019 is a wasteful number, since it uses less digits than its factorization.

69000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 69000019 is about 8306.6250065836. The cubic root of 69000019 is about 410.1566306175.

The spelling of 69000019 in words is "sixty-nine million, nineteen", and thus it is an aban number and an uban number.