2961620500 has 24 divisors (see below), whose sum is σ = 6468180264. Its totient is φ = 1184648000.

The previous prime is 2961620437. The next prime is 2961620509. The reversal of 2961620500 is 50261692.

It can be written as a sum of positive squares in 4 ways, for example, as 240746256 + 2720874244 = 15516^2 + 52162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961620509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961121 + ... + 2962120.

It is an arithmetic number, because the mean of its divisors is an integer number (269507511).

Almost surely, 2^2961620500 is an apocalyptic number.

2961620500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2961620500 is an abundant number, since it is smaller than the sum of its proper divisors (3506559764).

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

2961620500 is a wasteful number, since it uses less digits than its factorization.

2961620500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923260 (or 5923248 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2961620500 is about 54420.7726883770. The cubic root of 2961620500 is about 1436.0728419274.

The spelling of 2961620500 in words is "two billion, nine hundred sixty-one million, six hundred twenty thousand, five hundred".