40455648138632 has 48 divisors (see below), whose sum is σ = 78570283882740. Its totient is φ = 19527806656512.

The previous prime is 40455648138629. The next prime is 40455648138671. The reversal of 40455648138632 is 23683184655404.

It can be written as a sum of positive squares in 6 ways, for example, as 9525655085956 + 30929993052676 = 3086366^2 + 5561474^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52587668 + ... + 53351420.

Almost surely, 2^{40455648138632} is an apocalyptic number.

It is an amenable number.

40455648138632 is a deficient number, since it is larger than the sum of its proper divisors (38114635744108).

40455648138632 is a wasteful number, since it uses less digits than its factorization.

40455648138632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771690 (or 771657 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 59.

The spelling of 40455648138632 in words is "forty trillion, four hundred fifty-five billion, six hundred forty-eight million, one hundred thirty-eight thousand, six hundred thirty-two".