40699555231 has 4 divisors (see below), whose sum is σ = 42102988200. Its totient is φ = 39296122264.

The previous prime is 40699555229. The next prime is 40699555277. The reversal of 40699555231 is 13255599604.

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 40699555231 - 2¹ = 40699555229 is a prime.

It is a super-2 number, since 2×40699555231² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40699555291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701716441 + ... + 701716498.

It is an arithmetic number, because the mean of its divisors is an integer number (10525747050).

Almost surely, 2^40699555231 is an apocalyptic number.

40699555231 is a deficient number, since it is larger than the sum of its proper divisors (1403432969).

40699555231 is a wasteful number, since it uses less digits than its factorization.

40699555231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403432968.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 40699555231 in words is "forty billion, six hundred ninety-nine million, five hundred fifty-five thousand, two hundred thirty-one".