7622661840640 has 648 divisors, whose sum is σ = 23944170980016. Its totient is φ = 2299052851200.

The previous prime is 7622661840601. The next prime is 7622661840737. The reversal of 7622661840640 is 460481662267.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 663007372 + ... + 663018868.

It is an arithmetic number, because the mean of its divisors is an integer number (36950881142).

Almost surely, 2^{7622661840640} is an apocalyptic number.

7622661840640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7622661840640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11972085490008).

7622661840640 is an abundant number, since it is smaller than the sum of its proper divisors (16321509139376).

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

7622661840640 is a wasteful number, since it uses less digits than its factorization.

7622661840640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605 (or 11553 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 7622661840640 in words is "seven trillion, six hundred twenty-two billion, six hundred sixty-one million, eight hundred forty thousand, six hundred forty".