40545248465 has 16 divisors (see below), whose sum is σ = 50144001600. Its totient is φ = 31453918272.

The previous prime is 40545248461. The next prime is 40545248507. The reversal of 40545248465 is 56484254504.

40545248465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40545248465 - 2² = 40545248461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40545248461) 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, 648470 + ... + 708239.

It is an arithmetic number, because the mean of its divisors is an integer number (3134000100).

Almost surely, 2^40545248465 is an apocalyptic number.

It is an amenable number.

40545248465 is a deficient number, since it is larger than the sum of its proper divisors (9598753135).

40545248465 is a wasteful number, since it uses less digits than its factorization.

40545248465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356896.

The product of its (nonzero) digits is 3072000, while the sum is 47.

The spelling of 40545248465 in words is "forty billion, five hundred forty-five million, two hundred forty-eight thousand, four hundred sixty-five".