1903674391312 has 20 divisors (see below), whose sum is σ = 3815554276620. Its totient is φ = 919015223168.

The previous prime is 1903674391271. The next prime is 1903674391313. The reversal of 1903674391312 is 2131934763091.

It can be written as a sum of positive squares in 2 ways, for example, as 319288283136 + 1584386108176 = 565056^2 + 1258724^2 .

It is a super-2 number, since 2×1903674391312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1903674391313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051372803 + ... + 2051373730.

It is an arithmetic number, because the mean of its divisors is an integer number (190777713831).

Almost surely, 2^{1903674391312} is an apocalyptic number.

It is an amenable number.

1903674391312 is an abundant number, since it is smaller than the sum of its proper divisors (1911879885308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1903674391312 is a wasteful number, since it uses less digits than its factorization.

1903674391312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102746570 (or 4102746564 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 1903674391312 in words is "one trillion, nine hundred three billion, six hundred seventy-four million, three hundred ninety-one thousand, three hundred twelve".