740380169909 has 4 divisors (see below), whose sum is σ = 741733699104. Its totient is φ = 739026640716.

The previous prime is 740380169869. The next prime is 740380169911. The reversal of 740380169909 is 909961083047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740380169909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740380169939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676763777 + ... + 676764870.

It is an arithmetic number, because the mean of its divisors is an integer number (185433424776).

Almost surely, 2^740380169909 is an apocalyptic number.

It is an amenable number.

740380169909 is a deficient number, since it is larger than the sum of its proper divisors (1353529195).

740380169909 is a wasteful number, since it uses less digits than its factorization.

740380169909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353529194.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 740380169909 in words is "seven hundred forty billion, three hundred eighty million, one hundred sixty-nine thousand, nine hundred nine".