2650131820 has 48 divisors (see below), whose sum is σ = 6364350720. Its totient is φ = 908040384.

The previous prime is 2650131797. The next prime is 2650131821. The reversal of 2650131820 is 281310562.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2650131821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256311 + ... + 266449.

It is an arithmetic number, because the mean of its divisors is an integer number (132590640).

Almost surely, 2^2650131820 is an apocalyptic number.

2650131820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2650131820 is an abundant number, since it is smaller than the sum of its proper divisors (3714218900).

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

2650131820 is a wasteful number, since it uses less digits than its factorization.

2650131820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12022 (or 12020 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2650131820 is about 51479.4310380369. The cubic root of 2650131820 is about 1383.8504486906.

The spelling of 2650131820 in words is "two billion, six hundred fifty million, one hundred thirty-one thousand, eight hundred twenty".