2620720674 has 96 divisors (see below), whose sum is σ = 6780691008. Its totient is φ = 721008000.

The previous prime is 2620720667. The next prime is 2620720703. The reversal of 2620720674 is 4760270262.

2620720674 is a `hidden beast` number, since 2 + 620 + 7 + 20 + 6 + 7 + 4 = 666.

It is a super-2 number, since 2×2620720674² = 13736353702262028552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148669 + ... + 165359.

It is an arithmetic number, because the mean of its divisors is an integer number (70632198).

Almost surely, 2^2620720674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2620720674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3390345504).

2620720674 is an abundant number, since it is smaller than the sum of its proper divisors (4159970334).

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

2620720674 is a wasteful number, since it uses less digits than its factorization.

2620720674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16784 (or 16781 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 2620720674 is about 51192.9748500710. The cubic root of 2620720674 is about 1378.7120718467.

The spelling of 2620720674 in words is "two billion, six hundred twenty million, seven hundred twenty thousand, six hundred seventy-four".