18862403542 has 16 divisors (see below), whose sum is σ = 28697265072. Its totient is φ = 9297146880.

The previous prime is 18862403509. The next prime is 18862403557. The reversal of 18862403542 is 24530426881.

It is a happy number.

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, 48459 + ... + 200182.

It is an arithmetic number, because the mean of its divisors is an integer number (1793579067).

Almost surely, 2^18862403542 is an apocalyptic number.

18862403542 is a deficient number, since it is larger than the sum of its proper divisors (9834861530).

18862403542 is a wasteful number, since it uses less digits than its factorization.

18862403542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249183.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 18862403542 in words is "eighteen billion, eight hundred sixty-two million, four hundred three thousand, five hundred forty-two".