2620942990848 has 640 divisors, whose sum is σ = 9877917772800. Its totient is φ = 667392638976.

The previous prime is 2620942990843. The next prime is 2620942990859. The reversal of 2620942990848 is 8480992490262.

2620942990848 is a `hidden beast` number, since 26 + 20 + 9 + 429 + 90 + 84 + 8 = 666.

It is a super-2 number, since 2×2620942990848² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620942990843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36445615 + ... + 36517457.

It is an arithmetic number, because the mean of its divisors is an integer number (15434246520).

Almost surely, 2^{2620942990848} is an apocalyptic number.

2620942990848 is a gapful number since it is divisible by the number (28) 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 2620942990848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4938958886400).

2620942990848 is an abundant number, since it is smaller than the sum of its proper divisors (7256974781952).

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

2620942990848 is a wasteful number, since it uses less digits than its factorization.

2620942990848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71919 (or 71897 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 2620942990848 in words is "two trillion, six hundred twenty billion, nine hundred forty-two million, nine hundred ninety thousand, eight hundred forty-eight".