40013210002545 has 80 divisors (see below), whose sum is σ = 77994826221312. Its totient is φ = 19507560220800.

The previous prime is 40013210002541. The next prime is 40013210002561. The reversal of 40013210002545 is 54520001231004.

40013210002545 is a `hidden beast` number, since 4 + 0 + 0 + 13 + 2 + 100 + 0 + 2 + 545 = 666.

It is not a de Polignac number, because 40013210002545 - 2² = 40013210002541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40013210002541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36350181 + ... + 37434770.

Almost surely, 2^{40013210002545} is an apocalyptic number.

40013210002545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40013210002545 is a deficient number, since it is larger than the sum of its proper divisors (37981616218767).

40013210002545 is a wasteful number, since it uses less digits than its factorization.

40013210002545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73785084 (or 73785075 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 40013210002545 its reverse (54520001231004), we get a palindrome (94533211233549).

The spelling of 40013210002545 in words is "forty trillion, thirteen billion, two hundred ten million, two thousand, five hundred forty-five".