18780385462 has 16 divisors (see below), whose sum is σ = 29346786000. Its totient is φ = 9005887360.

The previous prime is 18780385453. The next prime is 18780385531. The reversal of 18780385462 is 26458308781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1936087 + ... + 1945762.

It is an arithmetic number, because the mean of its divisors is an integer number (1834174125).

Almost surely, 2^18780385462 is an apocalyptic number.

18780385462 is a deficient number, since it is larger than the sum of its proper divisors (10566400538).

18780385462 is a wasteful number, since it uses less digits than its factorization.

18780385462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881951.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 18780385462 in words is "eighteen billion, seven hundred eighty million, three hundred eighty-five thousand, four hundred sixty-two".