40808128325 has 12 divisors (see below), whose sum is σ = 50604634980. Its totient is φ = 32644853760.

The previous prime is 40808128301. The next prime is 40808128343. The reversal of 40808128325 is 52382180804.

It can be written as a sum of positive squares in 6 ways, for example, as 12032773636 + 28775354689 = 109694^2 + 169633^2 .

It is not a de Polignac number, because 40808128325 - 2³² = 36513161029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801221 + ... + 850629.

It is an arithmetic number, because the mean of its divisors is an integer number (4217052915).

Almost surely, 2^40808128325 is an apocalyptic number.

It is an amenable number.

40808128325 is a deficient number, since it is larger than the sum of its proper divisors (9796506655).

40808128325 is a wasteful number, since it uses less digits than its factorization.

40808128325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82456 (or 82451 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 40808128325 in words is "forty billion, eight hundred eight million, one hundred twenty-eight thousand, three hundred twenty-five".