40623403154 has 4 divisors (see below), whose sum is σ = 60935104734. Its totient is φ = 20311701576.

The previous prime is 40623403141. The next prime is 40623403189. The reversal of 40623403154 is 45130432604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26658072529 + 13965330625 = 163273^2 + 118175^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40623403154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155850787 + ... + 10155850790.

Almost surely, 2^40623403154 is an apocalyptic number.

40623403154 is a deficient number, since it is larger than the sum of its proper divisors (20311701580).

40623403154 is a wasteful number, since it uses less digits than its factorization.

40623403154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311701579.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 40623403154 its reverse (45130432604), we get a palindrome (85753835758).

The spelling of 40623403154 in words is "forty billion, six hundred twenty-three million, four hundred three thousand, one hundred fifty-four".