742807830769 has 9 divisors (see below), whose sum is σ = 749779926987. Its totient is φ = 735899998824.

The previous prime is 742807830767. The next prime is 742807830781. The reversal of 742807830769 is 967038708247.

The square root of 742807830769 is 861863.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 517733494369 + 225074336400 = 719537^2 + 474420^2 .

It is not a de Polignac number, because 742807830769 - 2¹ = 742807830767 is a prime.

It is a super-2 number, since 2×742807830769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742807830761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 93939114 + ... + 93947020.

Almost surely, 2^742807830769 is an apocalyptic number.

742807830769 is the 861863-rd square number.

742807830769 is the 430932-nd centered octagonal number.

It is an amenable number.

742807830769 is a deficient number, since it is larger than the sum of its proper divisors (6972096218).

742807830769 is an frugal number, since it uses more digits than its factorization.

742807830769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16032 (or 8016 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 61.

The spelling of 742807830769 in words is "seven hundred forty-two billion, eight hundred seven million, eight hundred thirty thousand, seven hundred sixty-nine".