40212889616 has 10 divisors (see below), whose sum is σ = 77912473662. Its totient is φ = 20106444800.

The previous prime is 40212889609. The next prime is 40212889621. The reversal of 40212889616 is 61698821204.

It can be written as a sum of positive squares in only one way, i.e., 25152691216 + 15060198400 = 158596^2 + 122720^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256652785 + ... + 1256652816.

Almost surely, 2^40212889616 is an apocalyptic number.

It is an amenable number.

40212889616 is a deficient number, since it is larger than the sum of its proper divisors (37699584046).

40212889616 is a wasteful number, since it uses less digits than its factorization.

40212889616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513305609 (or 2513305603 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 40212889616 in words is "forty billion, two hundred twelve million, eight hundred eighty-nine thousand, six hundred sixteen".