40263312072540 has 96 divisors (see below), whose sum is σ = 114007075015680. Its totient is φ = 10615956313600.

The previous prime is 40263312072491. The next prime is 40263312072541. The reversal of 40263312072540 is 4527021336204.

It is a super-2 number, since 2×40263312072540² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40263312072541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257902705 + ... + 258058775.

It is an arithmetic number, because the mean of its divisors is an integer number (1187573698080).

Almost surely, 2^{40263312072540} is an apocalyptic number.

It is an amenable number.

40263312072540 is an abundant number, since it is smaller than the sum of its proper divisors (73743762943140).

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

40263312072540 is a wasteful number, since it uses less digits than its factorization.

40263312072540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204483 (or 204481 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 40263312072540 in words is "forty trillion, two hundred sixty-three billion, three hundred twelve million, seventy-two thousand, five hundred forty".