1420638188463 has 36 divisors (see below), whose sum is σ = 2225722476432. Its totient is φ = 872783683200.

The previous prime is 1420638188443. The next prime is 1420638188479. The reversal of 1420638188463 is 3648818360241.

It is a happy number.

1420638188463 is a `hidden beast` number, since 1 + 4 + 20 + 6 + 3 + 81 + 88 + 463 = 666.

It is not a de Polignac number, because 1420638188463 - 2¹³ = 1420638180271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420638188423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 137070 + ... + 1691172.

Almost surely, 2^{1420638188463} is an apocalyptic number.

1420638188463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1420638188463 is a deficient number, since it is larger than the sum of its proper divisors (805084287969).

1420638188463 is a wasteful number, since it uses less digits than its factorization.

1420638188463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554736 (or 1554720 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 1420638188463 in words is "one trillion, four hundred twenty billion, six hundred thirty-eight million, one hundred eighty-eight thousand, four hundred sixty-three".