2621271602880 has 1792 divisors, whose sum is σ = 11528287027200. Its totient is φ = 547576381440.

The previous prime is 2621271602867. The next prime is 2621271602941. The reversal of 2621271602880 is 882061721262.

2621271602880 is a `hidden beast` number, since 2 + 621 + 2 + 7 + 16 + 0 + 2 + 8 + 8 + 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 polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3837879019 + ... + 3837879701.

Almost surely, 2^{2621271602880} is an apocalyptic number.

2621271602880 is a gapful number since it is divisible by the number (20) 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 2621271602880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5764143513600).

2621271602880 is an abundant number, since it is smaller than the sum of its proper divisors (8907015424320).

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

2621271602880 is a wasteful number, since it uses less digits than its factorization.

2621271602880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 2621271602880 in words is "two trillion, six hundred twenty-one billion, two hundred seventy-one million, six hundred two thousand, eight hundred eighty".