427320264465 has 192 divisors, whose sum is σ = 840459110400. Its totient is φ = 199554803712.

The previous prime is 427320264463. The next prime is 427320264509. The reversal of 427320264465 is 564462023724.

427320264465 is a `hidden beast` number, since 4 + 2 + 7 + 320 + 264 + 4 + 65 = 666.

It is not a de Polignac number, because 427320264465 - 2¹ = 427320264463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 427320264465.

It is not an unprimeable number, because it can be changed into a prime (427320264463) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 509320516 + ... + 509321354.

It is an arithmetic number, because the mean of its divisors is an integer number (4377391200).

Almost surely, 2^427320264465 is an apocalyptic number.

427320264465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

427320264465 is a deficient number, since it is larger than the sum of its proper divisors (413138845935).

427320264465 is a wasteful number, since it uses less digits than its factorization.

427320264465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 45.

The spelling of 427320264465 in words is "four hundred twenty-seven billion, three hundred twenty million, two hundred sixty-four thousand, four hundred sixty-five".