2560631682 has 64 divisors (see below), whose sum is σ = 6182313984. Its totient is φ = 691528320.

The previous prime is 2560631669. The next prime is 2560631693. The reversal of 2560631682 is 2861360652.

It is a super-2 number, since 2×2560631682² = 13113669221724298248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2560631682.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33118 + ... + 78854.

It is an arithmetic number, because the mean of its divisors is an integer number (96598656).

Almost surely, 2^2560631682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2560631682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3091156992).

2560631682 is an abundant number, since it is smaller than the sum of its proper divisors (3621682302).

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

2560631682 is a wasteful number, since it uses less digits than its factorization.

2560631682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45823.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2560631682 is about 50602.6845335304. The cubic root of 2560631682 is about 1368.0932648616.

The spelling of 2560631682 in words is "two billion, five hundred sixty million, six hundred thirty-one thousand, six hundred eighty-two".