31384582061 has 8 divisors (see below), whose sum is σ = 36066261504. Its totient is φ = 26752444560.

The previous prime is 31384581983. The next prime is 31384582091. The reversal of 31384582061 is 16028548313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31384582061 - 2¹⁰ = 31384581037 is a prime.

It is a super-2 number, since 2×31384582061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31384582091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12384125 + ... + 12386658.

It is an arithmetic number, because the mean of its divisors is an integer number (4508282688).

Almost surely, 2^31384582061 is an apocalyptic number.

It is an amenable number.

31384582061 is a deficient number, since it is larger than the sum of its proper divisors (4681679443).

31384582061 is a wasteful number, since it uses less digits than its factorization.

31384582061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24770971.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 31384582061 in words is "thirty-one billion, three hundred eighty-four million, five hundred eighty-two thousand, sixty-one".