40561300238640 has 40 divisors (see below), whose sum is σ = 125740030740528. Its totient is φ = 10816346730240.

The previous prime is 40561300238633. The next prime is 40561300238647. The reversal of 40561300238640 is 4683200316504.

It is an interprime number because it is at equal distance from previous prime (40561300238633) and next prime (40561300238647).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 40561300238592 and 40561300238601.

It is not an unprimeable number, because it can be changed into a prime (40561300238647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84502708591 + ... + 84502709070.

Almost surely, 2^{40561300238640} is an apocalyptic number.

40561300238640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40561300238640 is an abundant number, since it is smaller than the sum of its proper divisors (85178730501888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40561300238640 is a wasteful number, since it uses less digits than its factorization.

40561300238640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169005417677 (or 169005417671 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 40561300238640 in words is "forty trillion, five hundred sixty-one billion, three hundred million, two hundred thirty-eight thousand, six hundred forty".