2689938944 has 240 divisors, whose sum is σ = 7021479168. Its totient is φ = 999936000.

The previous prime is 2689938943. The next prime is 2689938989. The reversal of 2689938944 is 4498399862.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689938943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37886429 + ... + 37886499.

Almost surely, 2^2689938944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689938944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510739584).

2689938944 is an abundant number, since it is smaller than the sum of its proper divisors (4331540224).

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

2689938944 is an equidigital number, since it uses as much as digits as its factorization.

2689938944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 122 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 62.

The square root of 2689938944 is about 51864.6213135698. The cubic root of 2689938944 is about 1390.7448941204.

The spelling of 2689938944 in words is "two billion, six hundred eighty-nine million, nine hundred thirty-eight thousand, nine hundred forty-four".