40805391544628 has 72 divisors (see below), whose sum is σ = 77712831181440. Its totient is φ = 18732838190080.

The previous prime is 40805391544597. The next prime is 40805391544657. The reversal of 40805391544628 is 82644519350804.

It is a super-2 number, since 2×40805391544628² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006054613 + ... + 1006095171.

It is an arithmetic number, because the mean of its divisors is an integer number (1079344877520).

Almost surely, 2^{40805391544628} is an apocalyptic number.

It is an amenable number.

40805391544628 is a deficient number, since it is larger than the sum of its proper divisors (36907439636812).

40805391544628 is a wasteful number, since it uses less digits than its factorization.

40805391544628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61865 (or 61846 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 59.

The spelling of 40805391544628 in words is "forty trillion, eight hundred five billion, three hundred ninety-one million, five hundred forty-four thousand, six hundred twenty-eight".