1070064044721 has 135 divisors (see below), whose sum is σ = 1871435247513. Its totient is φ = 589133699280.

The previous prime is 1070064044677. The next prime is 1070064044779. The reversal of 1070064044721 is 1274404600701.

It is a happy number.

The square root of 1070064044721 is 1034439.

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

1070064044721 is a `hidden beast` number, since 1 + 0 + 7 + 0 + 0 + 640 + 4 + 4 + 7 + 2 + 1 = 666.

It is not a de Polignac number, because 1070064044721 - 2²³ = 1070055656113 is a prime.

It is a super-2 number, since 2×1070064044721² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1070064044221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 4713938410 + ... + 4713938636.

Almost surely, 2^{1070064044721} is an apocalyptic number.

1070064044721 is the 1034439-th square number.

1070064044721 is the 517220-th centered octagonal number.

It is an amenable number.

1070064044721 is a deficient number, since it is larger than the sum of its proper divisors (801371202792).

1070064044721 is an frugal number, since it uses more digits than its factorization.

1070064044721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

Multiplying 1070064044721 by its sum of digits (36), we get a square (38522305609956 = 6206634²).

The spelling of 1070064044721 in words is "one trillion, seventy billion, sixty-four million, forty-four thousand, seven hundred twenty-one".