40023263554 has 4 divisors (see below), whose sum is σ = 60034895334. Its totient is φ = 20011631776.

The previous prime is 40023263537. The next prime is 40023263569. The reversal of 40023263554 is 45536232004.

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., 25784330625 + 14238932929 = 160575^2 + 119327^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005815887 + ... + 10005815890.

Almost surely, 2^40023263554 is an apocalyptic number.

40023263554 is a deficient number, since it is larger than the sum of its proper divisors (20011631780).

40023263554 is a wasteful number, since it uses less digits than its factorization.

40023263554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011631779.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 40023263554 its reverse (45536232004), we get a palindrome (85559495558).

The spelling of 40023263554 in words is "forty billion, twenty-three million, two hundred sixty-three thousand, five hundred fifty-four".