19468692690 has 16 divisors (see below), whose sum is σ = 46724862528. Its totient is φ = 5191651376.

The previous prime is 19468692629. The next prime is 19468692709. The reversal of 19468692690 is 9629686491.

It is a super-2 number, since 2×19468692690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324478182 + ... + 324478241.

It is an arithmetic number, because the mean of its divisors is an integer number (2920303908).

Almost surely, 2^19468692690 is an apocalyptic number.

19468692690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19468692690 is an abundant number, since it is smaller than the sum of its proper divisors (27256169838).

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

19468692690 is a wasteful number, since it uses less digits than its factorization.

19468692690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648956433.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 19468692690 in words is "nineteen billion, four hundred sixty-eight million, six hundred ninety-two thousand, six hundred ninety".