2643345042 has 32 divisors (see below), whose sum is σ = 5743761408. Its totient is φ = 806136576.

The previous prime is 2643344987. The next prime is 2643345043. The reversal of 2643345042 is 2405433462.

It is a super-2 number, since 2×2643345042² = 13974546022131963528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2643344994 and 2643345012.

It is not an unprimeable number, because it can be changed into a prime (2643345043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141138 + ... + 158765.

It is an arithmetic number, because the mean of its divisors is an integer number (179492544).

Almost surely, 2^2643345042 is an apocalyptic number.

2643345042 is an abundant number, since it is smaller than the sum of its proper divisors (3100416366).

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

2643345042 is a wasteful number, since it uses less digits than its factorization.

2643345042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300034.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 2643345042 is about 51413.4714058485. The cubic root of 2643345042 is about 1382.6681283210.

The spelling of 2643345042 in words is "two billion, six hundred forty-three million, three hundred forty-five thousand, forty-two".