1901868672699 has 24 divisors (see below), whose sum is σ = 2761136043120. Its totient is φ = 1261467949248.

The previous prime is 1901868672673. The next prime is 1901868672709. The reversal of 1901868672699 is 9962768681091.

It is not a de Polignac number, because 1901868672699 - 2⁸ = 1901868672443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1901868672299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124332 + ... + 2251190.

It is an arithmetic number, because the mean of its divisors is an integer number (115047335130).

Almost surely, 2^{1901868672699} is an apocalyptic number.

1901868672699 is a deficient number, since it is larger than the sum of its proper divisors (859267370421).

1901868672699 is a wasteful number, since it uses less digits than its factorization.

1901868672699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127819 (or 1127816 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 1901868672699 in words is "one trillion, nine hundred one billion, eight hundred sixty-eight million, six hundred seventy-two thousand, six hundred ninety-nine".