18041501950 has 12 divisors (see below), whose sum is σ = 33557193720. Its totient is φ = 7216600760.

The previous prime is 18041501911. The next prime is 18041501963. The reversal of 18041501950 is 5910514081.

It is a super-2 number, since 2×18041501950² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180414970 + ... + 180415069.

It is an arithmetic number, because the mean of its divisors is an integer number (2796432810).

Almost surely, 2^18041501950 is an apocalyptic number.

18041501950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18041501950 is a deficient number, since it is larger than the sum of its proper divisors (15515691770).

18041501950 is a wasteful number, since it uses less digits than its factorization.

18041501950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360830051 (or 360830046 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 18041501950 in words is "eighteen billion, forty-one million, five hundred one thousand, nine hundred fifty".