42775457394 has 16 divisors (see below), whose sum is σ = 86633838720. Its totient is φ = 14077998480.

The previous prime is 42775457381. The next prime is 42775457419. The reversal of 42775457394 is 49375457724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45121317 + ... + 45122264.

It is an arithmetic number, because the mean of its divisors is an integer number (5414614920).

Almost surely, 2^42775457394 is an apocalyptic number.

42775457394 is an abundant number, since it is smaller than the sum of its proper divisors (43858381326).

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

42775457394 is a wasteful number, since it uses less digits than its factorization.

42775457394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90243665.

The product of its digits is 29635200, while the sum is 57.

The spelling of 42775457394 in words is "forty-two billion, seven hundred seventy-five million, four hundred fifty-seven thousand, three hundred ninety-four".