18246737419 has 12 divisors (see below), whose sum is σ = 19276192080. Its totient is φ = 17269727760.

The previous prime is 18246737417. The next prime is 18246737429. The reversal of 18246737419 is 91473764281.

It is a happy number.

It is not a de Polignac number, because 18246737419 - 2¹ = 18246737417 is a prime.

It is a super-2 number, since 2×18246737419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18246737417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359202 + ... + 406840.

It is an arithmetic number, because the mean of its divisors is an integer number (1606349340).

Almost surely, 2^18246737419 is an apocalyptic number.

18246737419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18246737419 is a deficient number, since it is larger than the sum of its proper divisors (1029454661).

18246737419 is a wasteful number, since it uses less digits than its factorization.

18246737419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48738 (or 48719 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The spelling of 18246737419 in words is "eighteen billion, two hundred forty-six million, seven hundred thirty-seven thousand, four hundred nineteen".