20278270467 has 192 divisors, whose sum is σ = 39599472640. Its totient is φ = 9699782400.

The previous prime is 20278270457. The next prime is 20278270477. The reversal of 20278270467 is 76407287202.

20278270467 is a `hidden beast` number, since 20 + 27 + 82 + 70 + 467 = 666.

It is an interprime number because it is at equal distance from previous prime (20278270457) and next prime (20278270477).

It is not a de Polignac number, because 20278270467 - 2⁷ = 20278270339 is a prime.

It is a super-2 number, since 2×20278270467² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20278270457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 61263492 + ... + 61263822.

Almost surely, 2^20278270467 is an apocalyptic number.

20278270467 is a deficient number, since it is larger than the sum of its proper divisors (19321202173).

20278270467 is a wasteful number, since it uses less digits than its factorization.

20278270467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 20278270467 in words is "twenty billion, two hundred seventy-eight million, two hundred seventy thousand, four hundred sixty-seven".