40728537793776 has 160 divisors (see below), whose sum is σ = 127230736791040. Its totient is φ = 10967144988672.

The previous prime is 40728537793711. The next prime is 40728537793859. The reversal of 40728537793776 is 67739773582704.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40728537793698 and 40728537793707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15295825 + ... + 17760048.

It is an arithmetic number, because the mean of its divisors is an integer number (795192104944).

Almost surely, 2^{40728537793776} is an apocalyptic number.

It is an amenable number.

40728537793776 is an abundant number, since it is smaller than the sum of its proper divisors (86502198997264).

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

40728537793776 is a wasteful number, since it uses less digits than its factorization.

40728537793776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33056103 (or 33056097 counting only the distinct ones).

The product of its (nonzero) digits is 2613824640, while the sum is 75.

The spelling of 40728537793776 in words is "forty trillion, seven hundred twenty-eight billion, five hundred thirty-seven million, seven hundred ninety-three thousand, seven hundred seventy-six".