140408733969 has 48 divisors (see below), whose sum is σ = 239324999680. Its totient is φ = 77625203040.

The previous prime is 140408733953. The next prime is 140408733989. The reversal of 140408733969 is 969337804041.

It is a happy number.

140408733969 is a `hidden beast` number, since 140 + 40 + 8 + 73 + 396 + 9 = 666.

It is not a de Polignac number, because 140408733969 - 2⁴ = 140408733953 is a prime.

It is a super-2 number, since 2×140408733969² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140408733929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10576674 + ... + 10589940.

Almost surely, 2^140408733969 is an apocalyptic number.

It is an amenable number.

140408733969 is a deficient number, since it is larger than the sum of its proper divisors (98916265711).

140408733969 is a wasteful number, since it uses less digits than its factorization.

140408733969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18730 (or 18727 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 140408733969 in words is "one hundred forty billion, four hundred eight million, seven hundred thirty-three thousand, nine hundred sixty-nine".