1427731421699 has 8 divisors (see below), whose sum is σ = 1558528119792. Its totient is φ = 1297101879040.

The previous prime is 1427731421657. The next prime is 1427731421707. The reversal of 1427731421699 is 9961241377241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1427731421699 - 2³⁶ = 1359011944963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427731421629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41770994 + ... + 41805159.

It is an arithmetic number, because the mean of its divisors is an integer number (194816014974).

Almost surely, 2^{1427731421699} is an apocalyptic number.

1427731421699 is a deficient number, since it is larger than the sum of its proper divisors (130796698093).

1427731421699 is a wasteful number, since it uses less digits than its factorization.

1427731421699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83577717.

The product of its digits is 4572288, while the sum is 56.

The spelling of 1427731421699 in words is "one trillion, four hundred twenty-seven billion, seven hundred thirty-one million, four hundred twenty-one thousand, six hundred ninety-nine".