42773108278 has 4 divisors (see below), whose sum is σ = 64159662420. Its totient is φ = 21386554138.

The previous prime is 42773108201. The next prime is 42773108321. The reversal of 42773108278 is 87280137724.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10693277068 + ... + 10693277071.

It is an arithmetic number, because the mean of its divisors is an integer number (16039915605).

Almost surely, 2^42773108278 is an apocalyptic number.

42773108278 is a deficient number, since it is larger than the sum of its proper divisors (21386554142).

42773108278 is a wasteful number, since it uses less digits than its factorization.

42773108278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21386554141.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 42773108278 in words is "forty-two billion, seven hundred seventy-three million, one hundred eight thousand, two hundred seventy-eight".