2658988506 has 16 divisors (see below), whose sum is σ = 5441651424. Its totient is φ = 865717104.

The previous prime is 2658988499. The next prime is 2658988543. The reversal of 2658988506 is 6058898562.

It is a super-2 number, since 2×2658988506² = 14140439750080224072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5152821 + ... + 5153336.

It is an arithmetic number, because the mean of its divisors is an integer number (340103214).

Almost surely, 2^2658988506 is an apocalyptic number.

2658988506 is an abundant number, since it is smaller than the sum of its proper divisors (2782662918).

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

2658988506 is a wasteful number, since it uses less digits than its factorization.

2658988506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306205.

The product of its (nonzero) digits is 8294400, while the sum is 57.

The square root of 2658988506 is about 51565.3808867926. The cubic root of 2658988506 is about 1385.3903344465.

The spelling of 2658988506 in words is "two billion, six hundred fifty-eight million, nine hundred eighty-eight thousand, five hundred six".