1909202011004 has 6 divisors (see below), whose sum is σ = 3341103519264. Its totient is φ = 954601005500.

The previous prime is 1909202010979. The next prime is 1909202011051. The reversal of 1909202011004 is 4001102029091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238650251372 + ... + 238650251379.

It is an arithmetic number, because the mean of its divisors is an integer number (556850586544).

Almost surely, 2^{1909202011004} is an apocalyptic number.

It is an amenable number.

1909202011004 is a deficient number, since it is larger than the sum of its proper divisors (1431901508260).

1909202011004 is a wasteful number, since it uses less digits than its factorization.

1909202011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477300502755 (or 477300502753 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 1909202011004 in words is "one trillion, nine hundred nine billion, two hundred two million, eleven thousand, four".