40310391825 has 96 divisors (see below), whose sum is σ = 80935534080. Its totient is φ = 19507694400.

The previous prime is 40310391809. The next prime is 40310391829. The reversal of 40310391825 is 52819301304.

It is not a de Polignac number, because 40310391825 - 2⁴ = 40310391809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40310391825.

It is not an unprimeable number, because it can be changed into a prime (40310391829) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4175454 + ... + 4185096.

It is an arithmetic number, because the mean of its divisors is an integer number (843078480).

Almost surely, 2^40310391825 is an apocalyptic number.

40310391825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40310391825 is an abundant number, since it is smaller than the sum of its proper divisors (40625142255).

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

40310391825 is a wasteful number, since it uses less digits than its factorization.

40310391825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10236 (or 10225 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 40310391825 in words is "forty billion, three hundred ten million, three hundred ninety-one thousand, eight hundred twenty-five".