19261145316 has 96 divisors (see below), whose sum is σ = 55649341440. Its totient is φ = 5058998784.

The previous prime is 19261145287. The next prime is 19261145317. The reversal of 19261145316 is 61354116291.

It is not an unprimeable number, because it can be changed into a prime (19261145317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95436 + ... + 218243.

It is an arithmetic number, because the mean of its divisors is an integer number (579680640).

Almost surely, 2^19261145316 is an apocalyptic number.

It is an amenable number.

19261145316 is an abundant number, since it is smaller than the sum of its proper divisors (36388196124).

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

19261145316 is a wasteful number, since it uses less digits than its factorization.

19261145316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313753 (or 313751 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The spelling of 19261145316 in words is "nineteen billion, two hundred sixty-one million, one hundred forty-five thousand, three hundred sixteen".