40404545551 has 8 divisors (see below), whose sum is σ = 42642155520. Its totient is φ = 38178041112.

The previous prime is 40404545549. The next prime is 40404545567. The reversal of 40404545551 is 15554540404.

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

It is a cyclic number.

It is not a de Polignac number, because 40404545551 - 2¹ = 40404545549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40404545551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404543551) 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, 2768905 + ... + 2783458.

It is an arithmetic number, because the mean of its divisors is an integer number (5330269440).

Almost surely, 2^40404545551 is an apocalyptic number.

40404545551 is a deficient number, since it is larger than the sum of its proper divisors (2237609969).

40404545551 is a wasteful number, since it uses less digits than its factorization.

40404545551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552765.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 40404545551 in words is "forty billion, four hundred four million, five hundred forty-five thousand, five hundred fifty-one".