40134845726428 has 48 divisors (see below), whose sum is σ = 72533348294400. Its totient is φ = 19411600320000.

The previous prime is 40134845726321. The next prime is 40134845726447. The reversal of 40134845726428 is 82462754843104.

It is a happy number.

It is a super-2 number, since 2×40134845726428² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5732726928 + ... + 5732733928.

It is an arithmetic number, because the mean of its divisors is an integer number (1511111422800).

Almost surely, 2^{40134845726428} is an apocalyptic number.

It is an amenable number.

40134845726428 is a deficient number, since it is larger than the sum of its proper divisors (32398502567972).

40134845726428 is a wasteful number, since it uses less digits than its factorization.

40134845726428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20638 (or 20636 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 58.

The spelling of 40134845726428 in words is "forty trillion, one hundred thirty-four billion, eight hundred forty-five million, seven hundred twenty-six thousand, four hundred twenty-eight".