19348657069 has 4 divisors (see below), whose sum is σ = 22112750944. Its totient is φ = 16584563196.

The previous prime is 19348657061. The next prime is 19348657073. The reversal of 19348657069 is 96075684391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19348657069 - 2³ = 19348657061 is a prime.

It is a super-2 number, since 2×19348657069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19348657061) 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, 1382046927 + ... + 1382046940.

It is an arithmetic number, because the mean of its divisors is an integer number (5528187736).

Almost surely, 2^19348657069 is an apocalyptic number.

It is an amenable number.

19348657069 is a deficient number, since it is larger than the sum of its proper divisors (2764093875).

19348657069 is an equidigital number, since it uses as much as digits as its factorization.

19348657069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764093874.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 19348657069 in words is "nineteen billion, three hundred forty-eight million, six hundred fifty-seven thousand, sixty-nine".