18977680419 has 8 divisors (see below), whose sum is σ = 25444935360. Its totient is φ = 12581106216.

The previous prime is 18977680399. The next prime is 18977680429. The reversal of 18977680419 is 91408677981.

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

It is not a de Polignac number, because 18977680419 - 2¹¹ = 18977678371 is a prime.

It is a super-2 number, since 2×18977680419² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18977680429) 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, 17669557 + ... + 17670630.

It is an arithmetic number, because the mean of its divisors is an integer number (3180616920).

Almost surely, 2^18977680419 is an apocalyptic number.

18977680419 is a deficient number, since it is larger than the sum of its proper divisors (6467254941).

18977680419 is a wasteful number, since it uses less digits than its factorization.

18977680419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35340369.

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 18977680419 in words is "eighteen billion, nine hundred seventy-seven million, six hundred eighty thousand, four hundred nineteen".