141491979918 has 12 divisors (see below), whose sum is σ = 306565956528. Its totient is φ = 47163993300.

The previous prime is 141491979911. The next prime is 141491979943. The reversal of 141491979918 is 819979194141.

141491979918 is a `hidden beast` number, since 1 + 41 + 491 + 9 + 7 + 99 + 18 = 666.

It is a super-2 number, since 2×141491979918² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141491979911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3930332758 + ... + 3930332793.

It is an arithmetic number, because the mean of its divisors is an integer number (25547163044).

Almost surely, 2^141491979918 is an apocalyptic number.

141491979918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

141491979918 is an abundant number, since it is smaller than the sum of its proper divisors (165073976610).

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

141491979918 is a wasteful number, since it uses less digits than its factorization.

141491979918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860665559 (or 7860665556 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 63.

The spelling of 141491979918 in words is "one hundred forty-one billion, four hundred ninety-one million, nine hundred seventy-nine thousand, nine hundred eighteen".