8261992146 has 32 divisors (see below), whose sum is σ = 17512702848. Its totient is φ = 2589520640.

The previous prime is 8261992121. The next prime is 8261992153. The reversal of 8261992146 is 6412991628.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8261992095 and 8261992104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70051 + ... + 146393.

It is an arithmetic number, because the mean of its divisors is an integer number (547271964).

Almost surely, 2^8261992146 is an apocalyptic number.

8261992146 is an abundant number, since it is smaller than the sum of its proper divisors (9250710702).

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

8261992146 is a wasteful number, since it uses less digits than its factorization.

8261992146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77426.

The product of its digits is 373248, while the sum is 48.

The square root of 8261992146 is about 90895.5012418106. The cubic root of 8261992146 is about 2021.5985896523.

The spelling of 8261992146 in words is "eight billion, two hundred sixty-one million, nine hundred ninety-two thousand, one hundred forty-six".