18578655942 has 64 divisors (see below), whose sum is σ = 47820423168. Its totient is φ = 4669956000.

The previous prime is 18578655941. The next prime is 18578655959. The reversal of 18578655942 is 24955687581.

It is a super-2 number, since 2×18578655942² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18578655941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634284 + ... + 662927.

It is an arithmetic number, because the mean of its divisors is an integer number (747194112).

Almost surely, 2^18578655942 is an apocalyptic number.

18578655942 is an abundant number, since it is smaller than the sum of its proper divisors (29241767226).

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

18578655942 is a wasteful number, since it uses less digits than its factorization.

18578655942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297265.

The product of its digits is 24192000, while the sum is 60.

The spelling of 18578655942 in words is "eighteen billion, five hundred seventy-eight million, six hundred fifty-five thousand, nine hundred forty-two".