40455351535232 has 128 divisors (see below), whose sum is σ = 86589064800000. Its totient is φ = 18759118749696.

The previous prime is 40455351535231. The next prime is 40455351535243. The reversal of 40455351535232 is 23253515355404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (40455351535231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85544288 + ... + 86015904.

It is an arithmetic number, because the mean of its divisors is an integer number (676477068750).

Almost surely, 2^{40455351535232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40455351535232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43294532400000).

40455351535232 is an abundant number, since it is smaller than the sum of its proper divisors (46133713264768).

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

40455351535232 is a wasteful number, since it uses less digits than its factorization.

40455351535232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472226 (or 472214 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 47.

The spelling of 40455351535232 in words is "forty trillion, four hundred fifty-five billion, three hundred fifty-one million, five hundred thirty-five thousand, two hundred thirty-two".