7642920544 has 192 divisors, whose sum is σ = 19055554560. Its totient is φ = 2943682560.

The previous prime is 7642920541. The next prime is 7642920569. The reversal of 7642920544 is 4450292467.

It is a self number, because there is not a number n which added to its sum of digits gives 7642920544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642920541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6992062 + ... + 6993154.

It is an arithmetic number, because the mean of its divisors is an integer number (99247680).

Almost surely, 2^7642920544 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 7642920544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9527777280).

7642920544 is an abundant number, since it is smaller than the sum of its proper divisors (11412634016).

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

7642920544 is a wasteful number, since it uses less digits than its factorization.

7642920544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 7642920544 is about 87423.7984990357. The cubic root of 7642920544 is about 1969.7893342372.

The spelling of 7642920544 in words is "seven billion, six hundred forty-two million, nine hundred twenty thousand, five hundred forty-four".