19057661417 has 8 divisors (see below), whose sum is σ = 19433219520. Its totient is φ = 18685767600.

The previous prime is 19057661387. The next prime is 19057661429. The reversal of 19057661417 is 71416675091.

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

It is not a de Polignac number, because 19057661417 - 2¹² = 19057657321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19057661477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905567 + ... + 926372.

It is an arithmetic number, because the mean of its divisors is an integer number (2429152440).

Almost surely, 2^19057661417 is an apocalyptic number.

It is an amenable number.

19057661417 is a deficient number, since it is larger than the sum of its proper divisors (375558103).

19057661417 is a wasteful number, since it uses less digits than its factorization.

19057661417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832143.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 19057661417 in words is "nineteen billion, fifty-seven million, six hundred sixty-one thousand, four hundred seventeen".