19933276534 has 4 divisors (see below), whose sum is σ = 29899914804. Its totient is φ = 9966638266.

The previous prime is 19933276457. The next prime is 19933276537. The reversal of 19933276534 is 43567233991.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19933276537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983319132 + ... + 4983319135.

It is an arithmetic number, because the mean of its divisors is an integer number (7474978701).

Almost surely, 2^19933276534 is an apocalyptic number.

19933276534 is a deficient number, since it is larger than the sum of its proper divisors (9966638270).

19933276534 is an equidigital number, since it uses as much as digits as its factorization.

19933276534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966638269.

The product of its digits is 3674160, while the sum is 52.

The spelling of 19933276534 in words is "nineteen billion, nine hundred thirty-three million, two hundred seventy-six thousand, five hundred thirty-four".