40511611504 has 40 divisors (see below), whose sum is σ = 96604615520. Its totient is φ = 16026571008.

The previous prime is 40511611471. The next prime is 40511611513.

40511611504 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13910499 + ... + 13913410.

It is an arithmetic number, because the mean of its divisors is an integer number (2415115388).

Almost surely, 2^40511611504 is an apocalyptic number.

It is an amenable number.

40511611504 is an abundant number, since it is smaller than the sum of its proper divisors (56093004016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40511611504 is a wasteful number, since it uses less digits than its factorization.

40511611504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27823937 (or 27823931 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 40511611504 in words is "forty billion, five hundred eleven million, six hundred eleven thousand, five hundred four".