1772431276772 has 12 divisors (see below), whose sum is σ = 3340351252476. Its totient is φ = 818045204640.

The previous prime is 1772431276753. The next prime is 1772431276783. The reversal of 1772431276772 is 2776721342771.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1198464425536 + 573966851236 = 1094744^2 + 757606^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17042608379 + ... + 17042608482.

It is an arithmetic number, because the mean of its divisors is an integer number (278362604373).

Almost surely, 2^{1772431276772} is an apocalyptic number.

It is an amenable number.

1772431276772 is a deficient number, since it is larger than the sum of its proper divisors (1567919975704).

1772431276772 is a wasteful number, since it uses less digits than its factorization.

1772431276772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34085216878 (or 34085216876 counting only the distinct ones).

The product of its digits is 9680832, while the sum is 56.

The spelling of 1772431276772 in words is "one trillion, seven hundred seventy-two billion, four hundred thirty-one million, two hundred seventy-six thousand, seven hundred seventy-two".