742783681033 has 4 divisors (see below), whose sum is σ = 743279202000. Its totient is φ = 742288160068.

The previous prime is 742783681009. The next prime is 742783681039. The reversal of 742783681033 is 330186387247.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 330186387247 = 245863 ⋅1342969.

It is a cyclic number.

It is not a de Polignac number, because 742783681033 - 2²⁹ = 742246810121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742783681039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247758235 + ... + 247761232.

It is an arithmetic number, because the mean of its divisors is an integer number (185819800500).

Almost surely, 2^742783681033 is an apocalyptic number.

It is an amenable number.

742783681033 is a deficient number, since it is larger than the sum of its proper divisors (495520967).

742783681033 is a wasteful number, since it uses less digits than its factorization.

742783681033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495520966.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 742783681033 in words is "seven hundred forty-two billion, seven hundred eighty-three million, six hundred eighty-one thousand, thirty-three".