31555454045 has 32 divisors (see below), whose sum is σ = 39610771200. Its totient is φ = 24102457344.

The previous prime is 31555454041. The next prime is 31555454053. The reversal of 31555454045 is 54045455513.

It is a cyclic number.

It is not a de Polignac number, because 31555454045 - 2² = 31555454041 is a prime.

It is a super-2 number, since 2×31555454045² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31555453993 and 31555454011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31555454041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5297789 + ... + 5303741.

It is an arithmetic number, because the mean of its divisors is an integer number (1237836600).

Almost surely, 2^31555454045 is an apocalyptic number.

It is an amenable number.

31555454045 is a deficient number, since it is larger than the sum of its proper divisors (8055317155).

31555454045 is a wasteful number, since it uses less digits than its factorization.

31555454045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 31555454045 in words is "thirty-one billion, five hundred fifty-five million, four hundred fifty-four thousand, forty-five".