7621984260 has 288 divisors, whose sum is σ = 27172454400. Its totient is φ = 1710086400.

The previous prime is 7621984259. The next prime is 7621984303. The reversal of 7621984260 is 624891267.

It is a happy number.

7621984260 is a `hidden beast` number, since 7 + 6 + 219 + 8 + 426 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1409041 + ... + 1414439.

It is an arithmetic number, because the mean of its divisors is an integer number (94348800).

Almost surely, 2^7621984260 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 7621984260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13586227200).

7621984260 is an abundant number, since it is smaller than the sum of its proper divisors (19550470140).

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

7621984260 is a wasteful number, since it uses less digits than its factorization.

7621984260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479 (or 5474 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7621984260 is about 87303.9761981091. The cubic root of 7621984260 is about 1967.9890720442.

The spelling of 7621984260 in words is "seven billion, six hundred twenty-one million, nine hundred eighty-four thousand, two hundred sixty".