18962989782 has 32 divisors (see below), whose sum is σ = 41429888640. Its totient is φ = 5738569920.

The previous prime is 18962989781. The next prime is 18962989807. The reversal of 18962989782 is 28798926981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18962989781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145623 + ... + 243170.

It is an arithmetic number, because the mean of its divisors is an integer number (1294684020).

Almost surely, 2^18962989782 is an apocalyptic number.

18962989782 is an abundant number, since it is smaller than the sum of its proper divisors (22466898858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18962989782 is a wasteful number, since it uses less digits than its factorization.

18962989782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389548.

The product of its digits is 62705664, while the sum is 69.

The spelling of 18962989782 in words is "eighteen billion, nine hundred sixty-two million, nine hundred eighty-nine thousand, seven hundred eighty-two".