40447761445 has 64 divisors (see below), whose sum is σ = 64723760640. Its totient is φ = 23535525888.

The previous prime is 40447761437. The next prime is 40447761457. The reversal of 40447761445 is 54416774404.

It is not a de Polignac number, because 40447761445 - 2³ = 40447761437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40447761395 and 40447761404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271801 + ... + 393409.

It is an arithmetic number, because the mean of its divisors is an integer number (1011308760).

Almost surely, 2^40447761445 is an apocalyptic number.

It is an amenable number.

40447761445 is a deficient number, since it is larger than the sum of its proper divisors (24275999195).

40447761445 is a wasteful number, since it uses less digits than its factorization.

40447761445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121694.

The product of its (nonzero) digits is 1505280, while the sum is 46.

The spelling of 40447761445 in words is "forty billion, four hundred forty-seven million, seven hundred sixty-one thousand, four hundred forty-five".