19487093152 has 12 divisors (see below), whose sum is σ = 38365214706. Its totient is φ = 9743546560.

The previous prime is 19487093111. The next prime is 19487093201. The reversal of 19487093152 is 25139078491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19333233936 + 153859216 = 139044^2 + 12404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19487093096 and 19487093105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304485799 + ... + 304485862.

Almost surely, 2^19487093152 is an apocalyptic number.

It is an amenable number.

19487093152 is a deficient number, since it is larger than the sum of its proper divisors (18878121554).

19487093152 is an equidigital number, since it uses as much as digits as its factorization.

19487093152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608971671 (or 608971663 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 19487093152 in words is "nineteen billion, four hundred eighty-seven million, ninety-three thousand, one hundred fifty-two".