742911971633 has 4 divisors (see below), whose sum is σ = 800059046388. Its totient is φ = 685764896880.

The previous prime is 742911971623. The next prime is 742911971797. The reversal of 742911971633 is 336179119247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266945822224 + 475966149409 = 516668^2 + 689903^2 .

It is a cyclic number.

It is not a de Polignac number, because 742911971633 - 2¹⁸ = 742911709489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742911971623) 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, 28573537358 + ... + 28573537383.

It is an arithmetic number, because the mean of its divisors is an integer number (200014761597).

Almost surely, 2^742911971633 is an apocalyptic number.

It is an amenable number.

742911971633 is a deficient number, since it is larger than the sum of its proper divisors (57147074755).

742911971633 is a wasteful number, since it uses less digits than its factorization.

742911971633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57147074754.

The product of its digits is 1714608, while the sum is 53.

The spelling of 742911971633 in words is "seven hundred forty-two billion, nine hundred eleven million, nine hundred seventy-one thousand, six hundred thirty-three".