40821558461831 has 32 divisors (see below), whose sum is σ = 47409981696000. Its totient is φ = 34426937001600.

The previous prime is 40821558461819. The next prime is 40821558461851. The reversal of 40821558461831 is 13816485512804.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40821558461831 - 2³⁴ = 40804378592647 is a prime.

It is a super-2 number, since 2×40821558461831² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40821558461851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439126406 + ... + 439219356.

It is an arithmetic number, because the mean of its divisors is an integer number (1481561928000).

Almost surely, 2^{40821558461831} is an apocalyptic number.

40821558461831 is a deficient number, since it is larger than the sum of its proper divisors (6588423234169).

40821558461831 is a wasteful number, since it uses less digits than its factorization.

40821558461831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97079.

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 40821558461831 in words is "forty trillion, eight hundred twenty-one billion, five hundred fifty-eight million, four hundred sixty-one thousand, eight hundred thirty-one".