40452556546 has 4 divisors (see below), whose sum is σ = 60678834822. Its totient is φ = 20226278272.

The previous prime is 40452556541. The next prime is 40452556591. The reversal of 40452556546 is 64565525404.

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., 28463401521 + 11989155025 = 168711^2 + 109495^2 .

It is a super-2 number, since 2×40452556546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40452556496 and 40452556505.

It is not an unprimeable number, because it can be changed into a prime (40452556541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10113139135 + ... + 10113139138.

Almost surely, 2^40452556546 is an apocalyptic number.

40452556546 is a deficient number, since it is larger than the sum of its proper divisors (20226278276).

40452556546 is a wasteful number, since it uses less digits than its factorization.

40452556546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20226278275.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 40452556546 in words is "forty billion, four hundred fifty-two million, five hundred fifty-six thousand, five hundred forty-six".