1927502138656 has 12 divisors (see below), whose sum is σ = 3794769835542. Its totient is φ = 963751069312.

The previous prime is 1927502138629. The next prime is 1927502138659. The reversal of 1927502138656 is 6568312057291.

It can be written as a sum of positive squares in only one way, i.e., 1912456663056 + 15045475600 = 1382916^2 + 122660^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1927502138597 and 1927502138606.

It is not an unprimeable number, because it can be changed into a prime (1927502138659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30117220885 + ... + 30117220948.

Almost surely, 2^{1927502138656} is an apocalyptic number.

1927502138656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1927502138656 is a deficient number, since it is larger than the sum of its proper divisors (1867267696886).

1927502138656 is an equidigital number, since it uses as much as digits as its factorization.

1927502138656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60234441843 (or 60234441835 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 1927502138656 in words is "one trillion, nine hundred twenty-seven billion, five hundred two million, one hundred thirty-eight thousand, six hundred fifty-six".