1648938531077 has 8 divisors (see below), whose sum is σ = 1752104301696. Its totient is φ = 1546458247872.

The previous prime is 1648938531059. The next prime is 1648938531127. The reversal of 1648938531077 is 7701358398461.

It is a happy number.

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 1648938531077 - 2²⁰ = 1648937482501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648938531277) 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, 171366893 + ... + 171376514.

It is an arithmetic number, because the mean of its divisors is an integer number (219013037712).

Almost surely, 2^{1648938531077} is an apocalyptic number.

1648938531077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1648938531077 is a deficient number, since it is larger than the sum of its proper divisors (103165770619).

1648938531077 is a wasteful number, since it uses less digits than its factorization.

1648938531077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342743707.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 1648938531077 in words is "one trillion, six hundred forty-eight billion, nine hundred thirty-eight million, five hundred thirty-one thousand, seventy-seven".