2877779745604 has 9 divisors (see below), whose sum is σ = 5036120492221. Its totient is φ = 1438888176400.

The previous prime is 2877779745593. The next prime is 2877779745671. The reversal of 2877779745604 is 4065479777782.

It is a happy number.

The square root of 2877779745604 is 1696402.

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., 2360531105604 + 517248640000 = 1536402^2 + 719200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2968704 + ... + 3816904.

Almost surely, 2^{2877779745604} is an apocalyptic number.

2877779745604 is the 1696402-nd square number.

It is an amenable number.

2877779745604 is a deficient number, since it is larger than the sum of its proper divisors (2158340746617).

2877779745604 is an frugal number, since it uses more digits than its factorization.

2877779745604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696406 (or 848203 counting only the distinct ones).

The product of its (nonzero) digits is 1161699840, while the sum is 73.

The spelling of 2877779745604 in words is "two trillion, eight hundred seventy-seven billion, seven hundred seventy-nine million, seven hundred forty-five thousand, six hundred four".