40145534451 has 12 divisors (see below), whose sum is σ = 63259630200. Its totient is φ = 24330626880.

The previous prime is 40145534449. The next prime is 40145534467. The reversal of 40145534451 is 15443554104.

40145534451 is a `hidden beast` number, since 4 + 0 + 14 + 553 + 44 + 51 = 666.

It is not a de Polignac number, because 40145534451 - 2¹ = 40145534449 is a prime.

It is a super-3 number, since 3×40145534451³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40145534431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202755126 + ... + 202755323.

It is an arithmetic number, because the mean of its divisors is an integer number (5271635850).

Almost surely, 2^40145534451 is an apocalyptic number.

40145534451 is a deficient number, since it is larger than the sum of its proper divisors (23114095749).

40145534451 is a wasteful number, since it uses less digits than its factorization.

40145534451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405510466 (or 405510463 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 40145534451 in words is "forty billion, one hundred forty-five million, five hundred thirty-four thousand, four hundred fifty-one".