648052643742 has 24 divisors (see below), whose sum is σ = 1507714314696. Its totient is φ = 185157898128.

The previous prime is 648052643657. The next prime is 648052643743. The reversal of 648052643742 is 247346250846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648052643743) 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 11 ways as a sum of consecutive naturals, for example, 1102130053 + ... + 1102130640.

It is an arithmetic number, because the mean of its divisors is an integer number (62821429779).

Almost surely, 2^648052643742 is an apocalyptic number.

648052643742 is an abundant number, since it is smaller than the sum of its proper divisors (859661670954).

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

648052643742 is a wasteful number, since it uses less digits than its factorization.

648052643742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204260712 (or 2204260705 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 51.

The spelling of 648052643742 in words is "six hundred forty-eight billion, fifty-two million, six hundred forty-three thousand, seven hundred forty-two".