1927926433661 has 8 divisors (see below), whose sum is σ = 1929598193664. Its totient is φ = 1926255006000.

The previous prime is 1927926433639. The next prime is 1927926433703. The reversal of 1927926433661 is 1663346297291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1927926433661 - 2¹⁸ = 1927926171517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1927926433661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1927926433861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320411 + ... + 12475911.

It is an arithmetic number, because the mean of its divisors is an integer number (241199774208).

Almost surely, 2^{1927926433661} is an apocalyptic number.

It is an amenable number.

1927926433661 is a deficient number, since it is larger than the sum of its proper divisors (1671760003).

1927926433661 is a wasteful number, since it uses less digits than its factorization.

1927926433661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166171.

The product of its digits is 17635968, while the sum is 59.

The spelling of 1927926433661 in words is "one trillion, nine hundred twenty-seven billion, nine hundred twenty-six million, four hundred thirty-three thousand, six hundred sixty-one".