1064023727640 has 64 divisors (see below), whose sum is σ = 3192242780160. Its totient is φ = 283724407680.

The previous prime is 1064023727633. The next prime is 1064023727681. The reversal of 1064023727640 is 467273204601.

It is a super-2 number, since 2×1064023727640² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1064023727592 and 1064023727601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2098287 + ... + 2555553.

It is an arithmetic number, because the mean of its divisors is an integer number (49878793440).

Almost surely, 2^{1064023727640} is an apocalyptic number.

1064023727640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064023727640 is an abundant number, since it is smaller than the sum of its proper divisors (2128219052520).

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

1064023727640 is a wasteful number, since it uses less digits than its factorization.

1064023727640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476672 (or 476668 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 1064023727640 in words is "one trillion, sixty-four billion, twenty-three million, seven hundred twenty-seven thousand, six hundred forty".