2621620546 has 16 divisors (see below), whose sum is σ = 4170679488. Its totient is φ = 1233262800.

The previous prime is 2621620531. The next prime is 2621620549. The reversal of 2621620546 is 6450261262.

It is not an unprimeable number, because it can be changed into a prime (2621620549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464340 + ... + 469951.

It is an arithmetic number, because the mean of its divisors is an integer number (260667468).

Almost surely, 2^2621620546 is an apocalyptic number.

2621620546 is a deficient number, since it is larger than the sum of its proper divisors (1549058942).

2621620546 is a wasteful number, since it uses less digits than its factorization.

2621620546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934377.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2621620546 is about 51201.7631141741. The cubic root of 2621620546 is about 1378.8698557249.

The spelling of 2621620546 in words is "two billion, six hundred twenty-one million, six hundred twenty thousand, five hundred forty-six".