19374195457 has 16 divisors (see below), whose sum is σ = 20079808000. Its totient is φ = 18673804800.

The previous prime is 19374195397. The next prime is 19374195461. The reversal of 19374195457 is 75459147391.

It is not a de Polignac number, because 19374195457 - 2¹¹ = 19374193409 is a prime.

It is a super-3 number, since 3×19374195457³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19374195398 and 19374195407.

It is not an unprimeable number, because it can be changed into a prime (19374195487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10409707 + ... + 10411567.

It is an arithmetic number, because the mean of its divisors is an integer number (1254988000).

Almost surely, 2^19374195457 is an apocalyptic number.

It is an amenable number.

19374195457 is a deficient number, since it is larger than the sum of its proper divisors (705612543).

19374195457 is a wasteful number, since it uses less digits than its factorization.

19374195457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064.

The product of its digits is 4762800, while the sum is 55.

The spelling of 19374195457 in words is "nineteen billion, three hundred seventy-four million, one hundred ninety-five thousand, four hundred fifty-seven".