1903692868061 has 4 divisors (see below), whose sum is σ = 1903696717824. Its totient is φ = 1903689018300.

The previous prime is 1903692868057. The next prime is 1903692868069. The reversal of 1903692868061 is 1608682963091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1903692868061 - 2² = 1903692868057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1903692868069) by changing a digit.

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, 1050845 + ... + 2216226.

It is an arithmetic number, because the mean of its divisors is an integer number (475924179456).

Almost surely, 2^{1903692868061} is an apocalyptic number.

It is an amenable number.

1903692868061 is a deficient number, since it is larger than the sum of its proper divisors (3849763).

1903692868061 is an equidigital number, since it uses as much as digits as its factorization.

1903692868061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849762.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 1903692868061 in words is "one trillion, nine hundred three billion, six hundred ninety-two million, eight hundred sixty-eight thousand, sixty-one".