40328257545 has 24 divisors (see below), whose sum is σ = 70452734976. Its totient is φ = 21339043488.

The previous prime is 40328257513. The next prime is 40328257561. The reversal of 40328257545 is 54575282304.

40328257545 is a `hidden beast` number, since 4 + 0 + 32 + 8 + 2 + 575 + 45 = 666.

It is not a de Polignac number, because 40328257545 - 2⁵ = 40328257513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40328257545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3522567 + ... + 3533996.

It is an arithmetic number, because the mean of its divisors is an integer number (2935530624).

Almost surely, 2^40328257545 is an apocalyptic number.

40328257545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40328257545 is a deficient number, since it is larger than the sum of its proper divisors (30124477431).

40328257545 is a wasteful number, since it uses less digits than its factorization.

40328257545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056701 (or 7056698 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 40328257545 in words is "forty billion, three hundred twenty-eight million, two hundred fifty-seven thousand, five hundred forty-five".