40134894291 has 24 divisors (see below), whose sum is σ = 59420531664. Its totient is φ = 26096241600.

The previous prime is 40134894281. The next prime is 40134894353. The reversal of 40134894291 is 19249843104.

40134894291 is a `hidden beast` number, since 40 + 1 + 3 + 489 + 42 + 91 = 666.

40134894291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40134894291 - 2¹¹ = 40134892243 is a prime.

It is a super-2 number, since 2×40134894291² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40134894211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268596 + ... + 390401.

It is an arithmetic number, because the mean of its divisors is an integer number (2475855486).

Almost surely, 2^40134894291 is an apocalyptic number.

40134894291 is a deficient number, since it is larger than the sum of its proper divisors (19285637373).

40134894291 is a wasteful number, since it uses less digits than its factorization.

40134894291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659171 (or 659168 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 40134894291 in words is "forty billion, one hundred thirty-four million, eight hundred ninety-four thousand, two hundred ninety-one".