427233340779 has 32 divisors (see below), whose sum is σ = 703385395200. Its totient is φ = 229772543616.

The previous prime is 427233340771. The next prime is 427233340811. The reversal of 427233340779 is 977043332724.

It is not a de Polignac number, because 427233340779 - 2³ = 427233340771 is a prime.

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

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (427233340771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12194059 + ... + 12229044.

It is an arithmetic number, because the mean of its divisors is an integer number (21980793600).

Almost surely, 2^427233340779 is an apocalyptic number.

427233340779 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

427233340779 is a deficient number, since it is larger than the sum of its proper divisors (276152054421).

427233340779 is a wasteful number, since it uses less digits than its factorization.

427233340779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24423144 (or 24423130 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 51.

The spelling of 427233340779 in words is "four hundred twenty-seven billion, two hundred thirty-three million, three hundred forty thousand, seven hundred seventy-nine".