2031603678 has 24 divisors (see below), whose sum is σ = 4740409128. Its totient is φ = 625108752.

The previous prime is 2031603661. The next prime is 2031603697. The reversal of 2031603678 is 8763061302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4340800 + ... + 4341267.

It is an arithmetic number, because the mean of its divisors is an integer number (197517047).

Almost surely, 2^2031603678 is an apocalyptic number.

2031603678 is an abundant number, since it is smaller than the sum of its proper divisors (2708805450).

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

2031603678 is a wasteful number, since it uses less digits than its factorization.

2031603678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682088 (or 8682085 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2031603678 is about 45073.3144776374. The cubic root of 2031603678 is about 1266.5227545488.

The spelling of 2031603678 in words is "two billion, thirty-one million, six hundred three thousand, six hundred seventy-eight".