18980412479 has 8 divisors (see below), whose sum is σ = 21830066208. Its totient is φ = 16165300320.

The previous prime is 18980412457. The next prime is 18980412481. The reversal of 18980412479 is 97421408981.

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

It is a cyclic number.

It is not a de Polignac number, because 18980412479 - 2²⁰ = 18979363903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18980412479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18980412079) 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, 8634212 + ... + 8636409.

It is an arithmetic number, because the mean of its divisors is an integer number (2728758276).

Almost surely, 2^18980412479 is an apocalyptic number.

18980412479 is a deficient number, since it is larger than the sum of its proper divisors (2849653729).

18980412479 is a wasteful number, since it uses less digits than its factorization.

18980412479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17270785.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 18980412479 in words is "eighteen billion, nine hundred eighty million, four hundred twelve thousand, four hundred seventy-nine".