742764738245 has 8 divisors (see below), whose sum is σ = 892666128120. Its totient is φ = 593312829120.

The previous prime is 742764738239. The next prime is 742764738281. The reversal of 742764738245 is 542837467247.

It is a Cunningham number, because it is equal to 861838²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 267394478404 + 475370259841 = 517102^2 + 689471^2 .

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

It is not a de Polignac number, because 742764738245 - 2¹² = 742764734149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112366550 + ... + 112373159.

It is an arithmetic number, because the mean of its divisors is an integer number (111583266015).

Almost surely, 2^742764738245 is an apocalyptic number.

It is an amenable number.

742764738245 is a deficient number, since it is larger than the sum of its proper divisors (149901389875).

742764738245 is a wasteful number, since it uses less digits than its factorization.

742764738245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224740375.

The product of its digits is 63221760, while the sum is 59.

The spelling of 742764738245 in words is "seven hundred forty-two billion, seven hundred sixty-four million, seven hundred thirty-eight thousand, two hundred forty-five".