4278016540433 has 2 divisors, whose sum is σ = 4278016540434. Its totient is φ = 4278016540432.

The previous prime is 4278016540429. The next prime is 4278016540463. The reversal of 4278016540433 is 3340456108724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3826530647104 + 451485893329 = 1956152^2 + 671927^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278016540433 - 2² = 4278016540429 is a prime.

It is not a weakly prime, because it can be changed into another prime (4278016540403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139008270216 + 2139008270217.

It is an arithmetic number, because the mean of its divisors is an integer number (2139008270217).

Almost surely, 2^{4278016540433} is an apocalyptic number.

It is an amenable number.

4278016540433 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278016540433 is an equidigital number, since it uses as much as digits as its factorization.

4278016540433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 4278016540433 in words is "four trillion, two hundred seventy-eight billion, sixteen million, five hundred forty thousand, four hundred thirty-three".