2061495688 has 32 divisors (see below), whose sum is σ = 4434710400. Its totient is φ = 880054272.

The previous prime is 2061495679. The next prime is 2061495707. The reversal of 2061495688 is 8865941602.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 57228 + ... + 86011.

It is an arithmetic number, because the mean of its divisors is an integer number (138584700).

Almost surely, 2^2061495688 is an apocalyptic number.

2061495688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2061495688 is an abundant number, since it is smaller than the sum of its proper divisors (2373214712).

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

2061495688 is a wasteful number, since it uses less digits than its factorization.

2061495688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143509 (or 143505 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2061495688 is about 45403.6968538907. The cubic root of 2061495688 is about 1272.7041988284.

The spelling of 2061495688 in words is "two billion, sixty-one million, four hundred ninety-five thousand, six hundred eighty-eight".