18940425462 has 48 divisors (see below), whose sum is σ = 49368533760. Its totient is φ = 5126731056.

The previous prime is 18940425461. The next prime is 18940425463. The reversal of 18940425462 is 26452404981.

It is a happy number.

18940425462 is a `hidden beast` number, since 18 + 94 + 0 + 4 + 2 + 546 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18940425461) and next prime (18940425463).

It is a super-3 number, since 3×18940425462³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18940425461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3953418 + ... + 3958205.

It is an arithmetic number, because the mean of its divisors is an integer number (1028511120).

Almost surely, 2^18940425462 is an apocalyptic number.

18940425462 is an abundant number, since it is smaller than the sum of its proper divisors (30428108298).

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

18940425462 is a wasteful number, since it uses less digits than its factorization.

18940425462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911657 (or 7911654 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 18940425462 in words is "eighteen billion, nine hundred forty million, four hundred twenty-five thousand, four hundred sixty-two".