2688437972 has 12 divisors (see below), whose sum is σ = 5132472576. Its totient is φ = 1222017240.

The previous prime is 2688437963. The next prime is 2688437993. The reversal of 2688437972 is 2797348862.

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 3 ways as a sum of consecutive naturals, for example, 30550388 + ... + 30550475.

It is an arithmetic number, because the mean of its divisors is an integer number (427706048).

Almost surely, 2^2688437972 is an apocalyptic number.

2688437972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2688437972 is a deficient number, since it is larger than the sum of its proper divisors (2444034604).

2688437972 is a wasteful number, since it uses less digits than its factorization.

2688437972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61100878 (or 61100876 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The square root of 2688437972 is about 51850.1491993996. The cubic root of 2688437972 is about 1390.4861698427.

The spelling of 2688437972 in words is "two billion, six hundred eighty-eight million, four hundred thirty-seven thousand, nine hundred seventy-two".