40347625905 has 32 divisors (see below), whose sum is σ = 74202537600. Its totient is φ = 20776706496.

The previous prime is 40347625873. The next prime is 40347625907. The reversal of 40347625905 is 50952674304.

It is not a de Polignac number, because 40347625905 - 2⁵ = 40347625873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (40347625907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5149039 + ... + 5156868.

It is an arithmetic number, because the mean of its divisors is an integer number (2318829300).

Almost surely, 2^40347625905 is an apocalyptic number.

40347625905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40347625905 is a deficient number, since it is larger than the sum of its proper divisors (33854911695).

40347625905 is a wasteful number, since it uses less digits than its factorization.

40347625905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305950 (or 10305944 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 40347625905 in words is "forty billion, three hundred forty-seven million, six hundred twenty-five thousand, nine hundred five".