19553131434 has 32 divisors (see below), whose sum is σ = 41871893760. Its totient is φ = 6065388032.

The previous prime is 19553131421. The next prime is 19553131457. The reversal of 19553131434 is 43413135591.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19553131392 and 19553131401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067874 + ... + 1086029.

It is an arithmetic number, because the mean of its divisors is an integer number (1308496680).

Almost surely, 2^19553131434 is an apocalyptic number.

19553131434 is an abundant number, since it is smaller than the sum of its proper divisors (22318762326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19553131434 is a wasteful number, since it uses less digits than its factorization.

19553131434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154014.

The product of its digits is 97200, while the sum is 39.

The spelling of 19553131434 in words is "nineteen billion, five hundred fifty-three million, one hundred thirty-one thousand, four hundred thirty-four".