40108637038648 has 16 divisors (see below), whose sum is σ = 76155639948000. Its totient is φ = 19800466385856.

The previous prime is 40108637038609. The next prime is 40108637038697. The reversal of 40108637038648 is 84683073680104.

It is a junction number, because it is equal to n+sod(n) for n = 40108637038592 and 40108637038601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31731516013 + ... + 31731517276.

It is an arithmetic number, because the mean of its divisors is an integer number (4759727496750).

Almost surely, 2^{40108637038648} is an apocalyptic number.

It is an amenable number.

40108637038648 is a deficient number, since it is larger than the sum of its proper divisors (36047002909352).

40108637038648 is a wasteful number, since it uses less digits than its factorization.

40108637038648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63463033374 (or 63463033370 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 58.

The spelling of 40108637038648 in words is "forty trillion, one hundred eight billion, six hundred thirty-seven million, thirty-eight thousand, six hundred forty-eight".