42774251892 has 48 divisors (see below), whose sum is σ = 103566177792. Its totient is φ = 13730340960.

The previous prime is 42774251881. The next prime is 42774251959. The reversal of 42774251892 is 29815247724.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547138 + ... + 620409.

It is an arithmetic number, because the mean of its divisors is an integer number (2157628704).

Almost surely, 2^42774251892 is an apocalyptic number.

It is an amenable number.

42774251892 is an abundant number, since it is smaller than the sum of its proper divisors (60791925900).

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

42774251892 is a wasteful number, since it uses less digits than its factorization.

42774251892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167668 (or 1167666 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The spelling of 42774251892 in words is "forty-two billion, seven hundred seventy-four million, two hundred fifty-one thousand, eight hundred ninety-two".