1901462022065 has 4 divisors (see below), whose sum is σ = 2281754426484. Its totient is φ = 1521169617648.

The previous prime is 1901462022037. The next prime is 1901462022137. The reversal of 1901462022065 is 5602202641091.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 197142216049 + 1704319806016 = 444007^2 + 1305496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1901462022065 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190146202202 + ... + 190146202211.

It is an arithmetic number, because the mean of its divisors is an integer number (570438606621).

Almost surely, 2^{1901462022065} is an apocalyptic number.

It is an amenable number.

1901462022065 is a deficient number, since it is larger than the sum of its proper divisors (380292404419).

1901462022065 is an equidigital number, since it uses as much as digits as its factorization.

1901462022065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380292404418.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 1901462022065 in words is "one trillion, nine hundred one billion, four hundred sixty-two million, twenty-two thousand, sixty-five".