1026647731064 has 16 divisors (see below), whose sum is σ = 1987060125120. Its totient is φ = 496765031040.

The previous prime is 1026647731061. The next prime is 1026647731073. The reversal of 1026647731064 is 4601377466201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026647731061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069854049 + ... + 2069854544.

It is an arithmetic number, because the mean of its divisors is an integer number (124191257820).

Almost surely, 2^{1026647731064} is an apocalyptic number.

It is an amenable number.

1026647731064 is a deficient number, since it is larger than the sum of its proper divisors (960412394056).

1026647731064 is a wasteful number, since it uses less digits than its factorization.

1026647731064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139708630 (or 4139708626 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 1026647731064 in words is "one trillion, twenty-six billion, six hundred forty-seven million, seven hundred thirty-one thousand, sixty-four".