1064726707720 has 128 divisors (see below), whose sum is σ = 2599922435040. Its totient is φ = 390090055680.

The previous prime is 1064726707717. The next prime is 1064726707789. The reversal of 1064726707720 is 277076274601.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 31743123556 + 1032983584164 = 178166^2 + 1016358^2 .

It is a super-2 number, since 2×1064726707720² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46857802 + ... + 46880518.

Almost surely, 2^{1064726707720} is an apocalyptic number.

1064726707720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1064726707720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299961217520).

1064726707720 is an abundant number, since it is smaller than the sum of its proper divisors (1535195727320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1064726707720 is a wasteful number, since it uses less digits than its factorization.

1064726707720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23435 (or 23431 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 49.

The spelling of 1064726707720 in words is "one trillion, sixty-four billion, seven hundred twenty-six million, seven hundred seven thousand, seven hundred twenty".