40534820654 has 4 divisors (see below), whose sum is σ = 60802230984. Its totient is φ = 20267410326.

The previous prime is 40534820633. The next prime is 40534820687. The reversal of 40534820654 is 45602843504.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133705162 + ... + 10133705165.

It is an arithmetic number, because the mean of its divisors is an integer number (15200557746).

Almost surely, 2^40534820654 is an apocalyptic number.

40534820654 is a deficient number, since it is larger than the sum of its proper divisors (20267410330).

40534820654 is a wasteful number, since it uses less digits than its factorization.

40534820654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267410329.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 40534820654 in words is "forty billion, five hundred thirty-four million, eight hundred twenty thousand, six hundred fifty-four".