40654536857 has 16 divisors (see below), whose sum is σ = 46314574848. Its totient is φ = 35324353680.

The previous prime is 40654536841. The next prime is 40654536859. The reversal of 40654536857 is 75863545604.

It is a happy number.

It is not a de Polignac number, because 40654536857 - 2⁴ = 40654536841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40654536799 and 40654536808.

It is not an unprimeable number, because it can be changed into a prime (40654536859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267998 + ... + 391320.

It is an arithmetic number, because the mean of its divisors is an integer number (2894660928).

Almost surely, 2^40654536857 is an apocalyptic number.

It is an amenable number.

40654536857 is a deficient number, since it is larger than the sum of its proper divisors (5660037991).

40654536857 is a wasteful number, since it uses less digits than its factorization.

40654536857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124660.

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 40654536857 in words is "forty billion, six hundred fifty-four million, five hundred thirty-six thousand, eight hundred fifty-seven".