127426366440 has 48 divisors (see below), whose sum is σ = 414135692100. Its totient is φ = 33980364288.

The previous prime is 127426366433. The next prime is 127426366471. The reversal of 127426366440 is 44663624721.

127426366440 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 2 + 636 + 6 + 4 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119933386596 + 7492979844 = 346314^2 + 86562^2 .

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

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 11 ways as a sum of consecutive naturals, for example, 176980705 + ... + 176981424.

Almost surely, 2^127426366440 is an apocalyptic number.

127426366440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127426366440 is an abundant number, since it is smaller than the sum of its proper divisors (286709325660).

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

127426366440 is a wasteful number, since it uses less digits than its factorization.

127426366440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353962146 (or 353962139 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

It can be divided in two parts, 1274263 and 66440, that added together give a triangular number (1340703 = T₁₆₃₇).

The spelling of 127426366440 in words is "one hundred twenty-seven billion, four hundred twenty-six million, three hundred sixty-six thousand, four hundred forty".