31040530642 has 8 divisors (see below), whose sum is σ = 50793595632. Its totient is φ = 14109332100.

The previous prime is 31040530627. The next prime is 31040530643. The reversal of 31040530642 is 24603504013.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31040530642.

It is not an unprimeable number, because it can be changed into a prime (31040530643) 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 3 ways as a sum of consecutive naturals, for example, 705466584 + ... + 705466627.

It is an arithmetic number, because the mean of its divisors is an integer number (6349199454).

Almost surely, 2^31040530642 is an apocalyptic number.

31040530642 is a deficient number, since it is larger than the sum of its proper divisors (19753064990).

31040530642 is a wasteful number, since it uses less digits than its factorization.

31040530642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410933224.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 31040530642 in words is "thirty-one billion, forty million, five hundred thirty thousand, six hundred forty-two".