19361493612 has 48 divisors (see below), whose sum is σ = 50528934400. Its totient is φ = 6411085200.

The previous prime is 19361493611. The next prime is 19361493643. The reversal of 19361493612 is 21639416391.

19361493612 is a `hidden beast` number, since 1 + 93 + 61 + 493 + 6 + 12 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (19361493611) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 577312 + ... + 609927.

Almost surely, 2^19361493612 is an apocalyptic number.

19361493612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19361493612 is an abundant number, since it is smaller than the sum of its proper divisors (31167440788).

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

19361493612 is a wasteful number, since it uses less digits than its factorization.

19361493612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187403 (or 1187395 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The spelling of 19361493612 in words is "nineteen billion, three hundred sixty-one million, four hundred ninety-three thousand, six hundred twelve".