1022471428694 has 4 divisors (see below), whose sum is σ = 1533707143044. Its totient is φ = 511235714346.

The previous prime is 1022471428679. The next prime is 1022471428709. The reversal of 1022471428694 is 4968241742201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1022471428679) and next prime (1022471428709).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 255617857172 + ... + 255617857175.

It is an arithmetic number, because the mean of its divisors is an integer number (383426785761).

Almost surely, 2^{1022471428694} is an apocalyptic number.

1022471428694 is a deficient number, since it is larger than the sum of its proper divisors (511235714350).

1022471428694 is an equidigital number, since it uses as much as digits as its factorization.

1022471428694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511235714349.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 1022471428694 in words is "one trillion, twenty-two billion, four hundred seventy-one million, four hundred twenty-eight thousand, six hundred ninety-four".