742508870309 has 8 divisors (see below), whose sum is σ = 747373623360. Its totient is φ = 737647891776.

The previous prime is 742508870297. The next prime is 742508870329. The reversal of 742508870309 is 903078805247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742508870309 - 2²⁴ = 742492093093 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 (742508870329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548369 + ... + 1336310.

It is an arithmetic number, because the mean of its divisors is an integer number (93421702920).

Almost surely, 2^742508870309 is an apocalyptic number.

It is an amenable number.

742508870309 is a deficient number, since it is larger than the sum of its proper divisors (4864753051).

742508870309 is a wasteful number, since it uses less digits than its factorization.

742508870309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887259.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 742508870309 in words is "seven hundred forty-two billion, five hundred eight million, eight hundred seventy thousand, three hundred nine".