40454483690 has 16 divisors (see below), whose sum is σ = 72837812520. Its totient is φ = 16177406400.

The previous prime is 40454483683. The next prime is 40454483723. The reversal of 40454483690 is 9638445404.

It is a Cunningham number, because it is equal to 201133²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 38174516689 + 2279967001 = 195383^2 + 47749^2 .

It is a super-2 number, since 2×40454483690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509525 + ... + 583544.

Almost surely, 2^40454483690 is an apocalyptic number.

40454483690 is a deficient number, since it is larger than the sum of its proper divisors (32383328830).

40454483690 is a wasteful number, since it uses less digits than its factorization.

40454483690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096777.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 40454483690 in words is "forty billion, four hundred fifty-four million, four hundred eighty-three thousand, six hundred ninety".