19091880742 has 8 divisors (see below), whose sum is σ = 31241259432. Its totient is φ = 8678127600.

The previous prime is 19091880739. The next prime is 19091880767. The reversal of 19091880742 is 24708819091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433906359 + ... + 433906402.

It is an arithmetic number, because the mean of its divisors is an integer number (3905157429).

Almost surely, 2^19091880742 is an apocalyptic number.

19091880742 is a deficient number, since it is larger than the sum of its proper divisors (12149378690).

19091880742 is a wasteful number, since it uses less digits than its factorization.

19091880742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867812774.

The product of its (nonzero) digits is 290304, while the sum is 49.

The spelling of 19091880742 in words is "nineteen billion, ninety-one million, eight hundred eighty thousand, seven hundred forty-two".