40045400551 has 8 divisors (see below), whose sum is σ = 44291379104. Its totient is φ = 35965931040.

The previous prime is 40045400543. The next prime is 40045400587. The reversal of 40045400551 is 15500454004.

40045400551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40045400551 - 2³ = 40045400543 is a prime.

It is a super-2 number, since 2×40045400551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40045400051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41626755 + ... + 41627716.

It is an arithmetic number, because the mean of its divisors is an integer number (5536422388).

Almost surely, 2^40045400551 is an apocalyptic number.

40045400551 is a deficient number, since it is larger than the sum of its proper divisors (4245978553).

40045400551 is a wasteful number, since it uses less digits than its factorization.

40045400551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83254521.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 40045400551 its reverse (15500454004), we get a palindrome (55545854555).

The spelling of 40045400551 in words is "forty billion, forty-five million, four hundred thousand, five hundred fifty-one".