40351518628 has 24 divisors (see below), whose sum is σ = 70912095800. Its totient is φ = 20091068928.

The previous prime is 40351518607. The next prime is 40351518637. The reversal of 40351518628 is 82681515304.

It can be written as a sum of positive squares in 4 ways, for example, as 16266961764 + 24084556864 = 127542^2 + 155192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099438 + ... + 1135546.

Almost surely, 2^40351518628 is an apocalyptic number.

It is an amenable number.

40351518628 is a deficient number, since it is larger than the sum of its proper divisors (30560577172).

40351518628 is a wasteful number, since it uses less digits than its factorization.

40351518628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37279 (or 37277 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 40351518628 in words is "forty billion, three hundred fifty-one million, five hundred eighteen thousand, six hundred twenty-eight".