2631676820 has 18 divisors (see below), whose sum is σ = 5527003146. Its totient is φ = 1052578960.

The previous prime is 2631676819. The next prime is 2631676829. The reversal of 2631676820 is 286761362.

It is a happy number.

2631676820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2105341456 + 526335364 = 45884^2 + 22942^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631676829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 223685 + ... + 235155.

Almost surely, 2^2631676820 is an apocalyptic number.

2631676820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2631676820 is an abundant number, since it is smaller than the sum of its proper divisors (2895326326).

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

2631676820 is an frugal number, since it uses more digits than its factorization.

2631676820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22951 (or 11478 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2631676820 is about 51299.8715398002. The cubic root of 2631676820 is about 1380.6306751137.

The spelling of 2631676820 in words is "two billion, six hundred thirty-one million, six hundred seventy-six thousand, eight hundred twenty".