2643730012442 has 8 divisors (see below), whose sum is σ = 3965607254100. Its totient is φ = 1321860927744.

The previous prime is 2643730012421. The next prime is 2643730012471. The reversal of 2643730012442 is 2442100373462.

It can be written as a sum of positive squares in 2 ways, for example, as 2436724122001 + 207005890441 = 1561001^2 + 454979^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2643730012396 and 2643730012405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151717 + ... + 2571752.

Almost surely, 2^{2643730012442} is an apocalyptic number.

2643730012442 is a deficient number, since it is larger than the sum of its proper divisors (1321877241658).

2643730012442 is a wasteful number, since it uses less digits than its factorization.

2643730012442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078480.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 2643730012442 in words is "two trillion, six hundred forty-three billion, seven hundred thirty million, twelve thousand, four hundred forty-two".