19419437401 has 24 divisors (see below), whose sum is σ = 24339255360. Its totient is φ = 15357498912.

The previous prime is 19419437371. The next prime is 19419437419. The reversal of 19419437401 is 10473491491.

It is not a de Polignac number, because 19419437401 - 2⁷ = 19419437273 is a prime.

It is a super-2 number, since 2×19419437401² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19419437461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1611340 + ... + 1623346.

It is an arithmetic number, because the mean of its divisors is an integer number (1014135640).

Almost surely, 2^19419437401 is an apocalyptic number.

It is an amenable number.

19419437401 is a deficient number, since it is larger than the sum of its proper divisors (4919817959).

19419437401 is a wasteful number, since it uses less digits than its factorization.

19419437401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573 (or 14566 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 19419437401 in words is "nineteen billion, four hundred nineteen million, four hundred thirty-seven thousand, four hundred one".