1049475264721 has 9 divisors (see below), whose sum is σ = 1136428465179. Its totient is φ = 968734104936.

The previous prime is 1049475264713. The next prime is 1049475264727. The reversal of 1049475264721 is 1274625749401.

The square root of 1049475264721 is 1024439.

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

1049475264721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 155247820225 + 894227444496 = 394015^2 + 945636^2 .

It is not a de Polignac number, because 1049475264721 - 2³ = 1049475264713 is a prime.

It is a super-2 number, since 2×1049475264721² (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 (1049475264727) 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, 13278306 + ... + 13357108.

Almost surely, 2^{1049475264721} is an apocalyptic number.

1049475264721 is the 1024439-th square number.

1049475264721 is the 512220-th centered octagonal number.

It is an amenable number.

1049475264721 is a deficient number, since it is larger than the sum of its proper divisors (86953200458).

1049475264721 is an frugal number, since it uses more digits than its factorization.

1049475264721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157632 (or 78816 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 1049475264721 in words is "one trillion, forty-nine billion, four hundred seventy-five million, two hundred sixty-four thousand, seven hundred twenty-one".