147491914905 has 32 divisors (see below), whose sum is σ = 264528299520. Its totient is φ = 77966219520.

The previous prime is 147491914901. The next prime is 147491914931. The reversal of 147491914905 is 509419194741.

It is a happy number.

147491914905 is a `hidden beast` number, since 1 + 4 + 7 + 491 + 9 + 149 + 0 + 5 = 666.

It is not a de Polignac number, because 147491914905 - 2² = 147491914901 is a prime.

It is a super-2 number, since 2×147491914905² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147491914901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4818961 + ... + 4849470.

It is an arithmetic number, because the mean of its divisors is an integer number (8266509360).

Almost surely, 2^147491914905 is an apocalyptic number.

147491914905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

147491914905 is a deficient number, since it is larger than the sum of its proper divisors (117036384615).

147491914905 is a wasteful number, since it uses less digits than its factorization.

147491914905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668558 (or 9668552 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 147491914905 in words is "one hundred forty-seven billion, four hundred ninety-one million, nine hundred fourteen thousand, nine hundred five".