18487070040 has 32 divisors (see below), whose sum is σ = 55461210480. Its totient is φ = 4929885312.

The previous prime is 18487070039. The next prime is 18487070057. The reversal of 18487070040 is 4007078481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77029339 + ... + 77029578.

Almost surely, 2^18487070040 is an apocalyptic number.

18487070040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18487070040 is an abundant number, since it is smaller than the sum of its proper divisors (36974140440).

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

18487070040 is a wasteful number, since it uses less digits than its factorization.

18487070040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154058931 (or 154058927 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The spelling of 18487070040 in words is "eighteen billion, four hundred eighty-seven million, seventy thousand, forty".