31553141641 has 32 divisors (see below), whose sum is σ = 36963153920. Its totient is φ = 26378649216.

The previous prime is 31553141623. The next prime is 31553141677. The reversal of 31553141641 is 14614135513.

It is a cyclic number.

It is not a de Polignac number, because 31553141641 - 2²³ = 31544753033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31553141597 and 31553141606.

It is not an unprimeable number, because it can be changed into a prime (31553141621) 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, 21805180 + ... + 21806626.

It is an arithmetic number, because the mean of its divisors is an integer number (1155098560).

Almost surely, 2^31553141641 is an apocalyptic number.

It is an amenable number.

31553141641 is a deficient number, since it is larger than the sum of its proper divisors (5410012279).

31553141641 is a wasteful number, since it uses less digits than its factorization.

31553141641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973.

The product of its digits is 21600, while the sum is 34.

The spelling of 31553141641 in words is "thirty-one billion, five hundred fifty-three million, one hundred forty-one thousand, six hundred forty-one".