40515450023 has 4 divisors (see below), whose sum is σ = 40526057208. Its totient is φ = 40504842840.

The previous prime is 40515450013. The next prime is 40515450029. The reversal of 40515450023 is 32005451504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40515450023 - 2⁶ = 40515449959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40515450029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5297861 + ... + 5305502.

It is an arithmetic number, because the mean of its divisors is an integer number (10131514302).

Almost surely, 2^40515450023 is an apocalyptic number.

40515450023 is a deficient number, since it is larger than the sum of its proper divisors (10607185).

40515450023 is a wasteful number, since it uses less digits than its factorization.

40515450023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607184.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 40515450023 in words is "forty billion, five hundred fifteen million, four hundred fifty thousand, twenty-three".