40171620351 has 16 divisors (see below), whose sum is σ = 55299594240. Its totient is φ = 25912664160.

The previous prime is 40171620331. The next prime is 40171620373. The reversal of 40171620351 is 15302617104.

It is not a de Polignac number, because 40171620351 - 2⁶ = 40171620287 is a prime.

It is a super-3 number, since 3×40171620351³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40171620311) 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, 548566 + ... + 617468.

It is an arithmetic number, because the mean of its divisors is an integer number (3456224640).

Almost surely, 2^40171620351 is an apocalyptic number.

40171620351 is a deficient number, since it is larger than the sum of its proper divisors (15127973889).

40171620351 is a wasteful number, since it uses less digits than its factorization.

40171620351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75206.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 40171620351 in words is "forty billion, one hundred seventy-one million, six hundred twenty thousand, three hundred fifty-one".